[gnome-calculator/gnome-3-18] Update zh_CN translation

[YunQiang Su <yqsu src gnome org>]

commit 494f9650dbd4ecc4ba5eb370dcc3e659245e97dc
Author: Mingye Wang <arthur200126 gmail com>
Date:   Thu Apr 14 16:31:26 2016 +0800

    Update zh_CN translation

 po/zh_CN.po | 1337 +++++++++++++++++++++++++++++++++++++++++------------------
 1 files changed, 943 insertions(+), 394 deletions(-)
---
diff --git a/po/zh_CN.po b/po/zh_CN.po
index f307bc6..4fc84c7 100644
--- a/po/zh_CN.po
+++ b/po/zh_CN.po
@@ -1,10 +1,11 @@
 # translation of gcalctool.HEAD.po to Simplified Chinese.
 # Copyright (C) 2009, 2010 Free Software Foundation, Inc.
 # This file is distributed under the same license as the gcalctool package.
+# arccos <boyermoore gmail com>，2009.
+#
 # Funda Wang <fundawang linux net cn>, 2003, 2004.
 # Shaodong Di <gnuyhlfh gmail com>, 2008.
 # 甘露(Gan Lu) <rhythm gan gmail com>, 2009.
-# arccos <boyermoore gmail com>，2009.
 # Aron Xu <happyaron xu gmail com>, 2009, 2010.
 # Tao Wei <weitao1979 gmail com>, 2010.
 # vicwjb <vicwjb gmail com>, 2010.
@@ -14,21 +15,23 @@
 # YunQiang Su <wzssyqa gmail com>, 2011.
 # tuhaihe <1132321739qq gmail com>, 2012, 2013.
 # Tong Hui <tonghuix gmail com>, 2013.
-#
+# zhouxiaobo <zhouxiaobo500 hotmail com>, 2014, 2015.
+# Jeff Bai <jeffbai aosc xyz>, 2015.
 msgid ""
 msgstr ""
 "Project-Id-Version: gcalctool master\n"
 "Report-Msgid-Bugs-To: http://bugzilla.gnome.org/enter_bug.cgi?product=http://";
 "bugzilla.gnome.org/&keywords=I18N+L10N&component=general\n"
-"POT-Creation-Date: 2014-03-08 07:12+0000\n"
-"PO-Revision-Date: 2014-03-08 22:04+0800\n"
-"Last-Translator: Tong Hui <tonghuix gmail com>\n"
+"POT-Creation-Date: 2015-11-10 20:01+0000\n"
+"PO-Revision-Date: 2016-04-14 16:28+0800\n"
+"Last-Translator: Aron Xu <happyaron xu gmail com>\n"
 "Language-Team: Chinese (simplified) <i18n-zh googlegroups com>\n"
-"Language: \n"
+"Language: zh_CN\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=1; plural=0;\n"
+"X-Generator: Poedit 1.8.7.1\n"
 
 #. Accessible name for the inverse button
 #: ../data/buttons-advanced.ui.h:2 ../data/buttons-programming.ui.h:24
@@ -47,7 +50,7 @@ msgstr "阶乘"
 
 #. Label on the solve button (clicking this solves the displayed calculation)
 #: ../data/buttons-advanced.ui.h:8 ../data/buttons-basic.ui.h:2
-#: ../data/buttons-financial.ui.h:76 ../data/buttons-programming.ui.h:6
+#: ../data/buttons-financial.ui.h:77 ../data/buttons-programming.ui.h:6
 msgid "="
 msgstr "="
 
@@ -69,13 +72,13 @@ msgstr "科学计数法"
 #. Accessible name for the memory button
 #. Accessible name for the memory value button
 #. Tooltip for the memory button
-#: ../data/buttons-advanced.ui.h:16 ../data/buttons-financial.ui.h:72
-#: ../src/math-buttons.vala:375
+#: ../data/buttons-advanced.ui.h:16 ../data/buttons-financial.ui.h:73
+#: ../src/math-buttons.vala:377
 msgid "Memory"
 msgstr "记忆"
 
 #. The label on the memory button
-#: ../data/buttons-advanced.ui.h:18 ../data/buttons-financial.ui.h:74
+#: ../data/buttons-advanced.ui.h:18 ../data/buttons-financial.ui.h:75
 #: ../data/buttons-programming.ui.h:14
 msgid "x"
 msgstr "记忆"
@@ -87,7 +90,7 @@ msgstr "绝对值"
 
 #. Accessible name for the exponentiation (x to the power of y) button
 #: ../data/buttons-advanced.ui.h:22 ../data/buttons-basic.ui.h:4
-#: ../data/buttons-financial.ui.h:98 ../data/buttons-programming.ui.h:26
+#: ../data/buttons-financial.ui.h:99 ../data/buttons-programming.ui.h:26
 msgid "Exponent"
 msgstr "X^Y"
 
@@ -98,27 +101,31 @@ msgstr "存储"
 
 #. Title of Compounding Term dialog
 #. Tooltip for the compounding term button
-#: ../data/buttons-financial.ui.h:2 ../src/math-buttons.vala:391
+#: ../data/buttons-financial.ui.h:2 ../src/math-buttons.vala:393
 msgid "Compounding Term"
 msgstr "复利期数"
 
+#: ../data/buttons-financial.ui.h:3 ../data/buttons-programming.ui.h:31
+msgid "_Cancel"
+msgstr "取消（_C）"
+
 #. Payment Period Dialog: Button to calculate result
-#: ../data/buttons-financial.ui.h:4
+#: ../data/buttons-financial.ui.h:5
 msgid "C_alculate"
 msgstr "计算(_A)"
 
 #. Periodic Interest Rate Dialog: Label before present value input
-#: ../data/buttons-financial.ui.h:6
+#: ../data/buttons-financial.ui.h:7
 msgid "Present _Value:"
 msgstr "现值(_V)："
 
 #. Payment Period Dialog: Label before periodic interest rate input
-#: ../data/buttons-financial.ui.h:8
+#: ../data/buttons-financial.ui.h:9
 msgid "Periodic Interest _Rate:"
 msgstr "每期利率(_R)："
 
 #. Compounding Term Dialog: Description of calculation
-#: ../data/buttons-financial.ui.h:10
+#: ../data/buttons-financial.ui.h:11
 msgid ""
 "Calculates the number of compounding periods necessary to increase an "
 "investment of present value to a future value, at a fixed interest rate per "
@@ -126,45 +133,45 @@ msgid ""
 msgstr "计算某投资的现值到一期待值需要的投资周期数，每个投资周期利息率固定。"
 
 #. Periodic Interest Rate Dialog: Label before future value input
-#: ../data/buttons-financial.ui.h:12
+#: ../data/buttons-financial.ui.h:13
 msgid "_Future Value:"
 msgstr "未来值(_F)："
 
 #. Title of Double-Declining Depreciation dialog
-#: ../data/buttons-financial.ui.h:14
+#: ../data/buttons-financial.ui.h:15
 msgid "Double-Declining Depreciation"
 msgstr "双倍余额递减折旧"
 
 #. Double-Declining Depreciation Dialog: Description of calculation
-#: ../data/buttons-financial.ui.h:16
+#: ../data/buttons-financial.ui.h:17
 msgid ""
 "Calculates the depreciation allowance on an asset for a specified period of "
 "time, using the double-declining balance method."
 msgstr "è®¡ç®—æŸä¸€èµ„äº§åœ¨æŒ‡å®šæœŸé—´çš„æŠ˜æ—§ææˆï¼Œä½¿ç”¨åŠ å€ä½™é¢é€’å‡æ³•ã€‚"
 
 #. Gross Profit Margin Dialog: Label before cost input
-#: ../data/buttons-financial.ui.h:18
+#: ../data/buttons-financial.ui.h:19
 msgid "C_ost:"
 msgstr "成本(_O)："
 
-#. Sum-of-the-Years'-Digits Depreciation Dialog: Label before life input
-#: ../data/buttons-financial.ui.h:20
+#. Sum-of-the-Years
+#: ../data/buttons-financial.ui.h:21
 msgid "_Life:"
 msgstr "年限(_L)："
 
-#. Sum-of-the-Years'-Digits Depreciation Dialog: Label before period input
-#: ../data/buttons-financial.ui.h:22
+#. Sum-of-the-Years
+#: ../data/buttons-financial.ui.h:23
 msgid "_Period:"
 msgstr "期(_P)："
 
 #. Title of Future Value dialog
 #. Tooltip for the future value button
-#: ../data/buttons-financial.ui.h:24 ../src/math-buttons.vala:395
+#: ../data/buttons-financial.ui.h:25 ../src/math-buttons.vala:397
 msgid "Future Value"
 msgstr "未来值"
 
 #. Future Value Dialog: Description of calculation
-#: ../data/buttons-financial.ui.h:26
+#: ../data/buttons-financial.ui.h:27
 msgid ""
 "Calculates the future value of an investment based on a series of equal "
 "payments at a periodic interest rate over the number of payment periods in "
@@ -172,64 +179,64 @@ msgid ""
 msgstr "计算某投资的未来值，按约定付款期数的固定利率下每期等额付款。"
 
 #. Payment Period Dialog: Label before periodic payment input
-#: ../data/buttons-financial.ui.h:28
+#: ../data/buttons-financial.ui.h:29
 msgid "_Periodic Payment:"
 msgstr "定期付款(_P)："
 
 #. Present Value Dialog: Label before number of periods input
-#: ../data/buttons-financial.ui.h:30
+#: ../data/buttons-financial.ui.h:31
 msgid "_Number of Periods:"
 msgstr "期数(_N)："
 
 #. Title of Gross Profit Margin dialog
 #. Tooltip for the gross profit margin button
-#: ../data/buttons-financial.ui.h:32 ../src/math-buttons.vala:409
+#: ../data/buttons-financial.ui.h:33 ../src/math-buttons.vala:411
 msgid "Gross Profit Margin"
 msgstr "毛利率"
 
 #. Gross Profit Margin Dialog: Description of calculation
-#: ../data/buttons-financial.ui.h:34
+#: ../data/buttons-financial.ui.h:35
 msgid ""
 "Calculates the resale price of a product, based on the product cost and the "
 "wanted gross profit margin."
 msgstr "è®¡ç®—æŸäº§å“çš„è½¬å”®ä»·æ ¼ï¼ŒæŒ‰äº§å“æˆæœ¬åŠæœŸæœ›çš„æ¯›åˆ©çŽ‡ã€‚"
 
 #. Gross Profit Margin Dialog: Label before margin input
-#: ../data/buttons-financial.ui.h:36
+#: ../data/buttons-financial.ui.h:37
 msgid "_Margin:"
 msgstr "利率(_M)："
 
 #. Title of Periodic Payment dialog
 #. Tooltip for the periodic payment button
-#: ../data/buttons-financial.ui.h:38 ../src/math-buttons.vala:407
+#: ../data/buttons-financial.ui.h:39 ../src/math-buttons.vala:409
 msgid "Periodic Payment"
 msgstr "每期付款额"
 
 #. Periodic Payment Dialog: Description of calculation
-#: ../data/buttons-financial.ui.h:40
+#: ../data/buttons-financial.ui.h:41
 msgid ""
 "Calculates the amount of the periodic payment of a loan, where payments are "
 "made at the end of each payment period. "
 msgstr "计算一笔贷款的定期付款数量，在每笔付款期末期付款。"
 
 #. Periodic Payment Dialog: Label before principal input
-#: ../data/buttons-financial.ui.h:42
+#: ../data/buttons-financial.ui.h:43
 msgid "_Principal:"
 msgstr "本金(_P)："
 
 #. Periodic Interest Rate Dialog: Label before term input
-#: ../data/buttons-financial.ui.h:44
+#: ../data/buttons-financial.ui.h:45
 msgid "_Term:"
 msgstr "期限(_T)："
 
 #. Title of Present Value dialog
 #. Tooltip for the present value button
-#: ../data/buttons-financial.ui.h:46 ../src/math-buttons.vala:405
+#: ../data/buttons-financial.ui.h:47 ../src/math-buttons.vala:407
 msgid "Present Value"
 msgstr "现值"
 
 #. Present Value Dialog: Description of calculation
-#: ../data/buttons-financial.ui.h:48
+#: ../data/buttons-financial.ui.h:49
 msgid ""
 "Calculates the present value of an investment based on a series of equal "
 "payments discounted at a periodic interest rate over the number of payment "
@@ -238,34 +245,34 @@ msgstr "计算基于一系列平等付款的投资现值在付款周期的周期
 
 #. Title of Periodic Interest Rate dialog
 #. Tooltip for the periodic interest rate button
-#: ../data/buttons-financial.ui.h:50 ../src/math-buttons.vala:403
+#: ../data/buttons-financial.ui.h:51 ../src/math-buttons.vala:405
 msgid "Periodic Interest Rate"
 msgstr "每期利率"
 
 #. Periodic Interest Rate Dialog: Description of calculation
-#: ../data/buttons-financial.ui.h:52
+#: ../data/buttons-financial.ui.h:53
 msgid ""
 "Calculates the periodic interest necessary to increase an investment to a "
 "future value, over the number of compounding periods. "
 msgstr "è®¡ç®—æŸæŠ•èµ„å¢žåŠ åˆ°æŸä¸€æœªæ¥å€¼éœ€è¦çš„æ¯æœŸåˆ©çŽ‡ï¼ŒæŒ‰å¤åˆæœŸæ•°ã€‚"
 
 #. Title of Straight-Line Depreciation dialog
-#: ../data/buttons-financial.ui.h:54
+#: ../data/buttons-financial.ui.h:55
 msgid "Straight-Line Depreciation"
 msgstr "直线折旧"
 
-#. Sum-of-the-Years'-Digits Depreciation Dialog: Label before cost input
-#: ../data/buttons-financial.ui.h:56
+#. Sum-of-the-Years
+#: ../data/buttons-financial.ui.h:57
 msgid "_Cost:"
 msgstr "成本(_C)："
 
-#. Sum-of-the-Years'-Digits Depreciation Dialog: Label before salvage input
-#: ../data/buttons-financial.ui.h:58
+#. Sum-of-the-Years
+#: ../data/buttons-financial.ui.h:59
 msgid "_Salvage:"
 msgstr "残值(_S)："
 
 #. Straight-Line Depreciation Dialog: Description of calculation
-#: ../data/buttons-financial.ui.h:60
+#: ../data/buttons-financial.ui.h:61
 msgid ""
 "Calculates the straight-line depreciation of an asset for one period. The "
 "straight-line method of depreciation divides the depreciable cost evenly "
@@ -275,13 +282,13 @@ msgstr ""
 "计算一个期间某资产的直线折旧。直线折旧法在某资产可用年限内均分折旧成本。可用"
 "年限指该资产折旧的期数，典型情况下为年。"
 
-#. Title of Sum-of-the-Years'-Digits Depreciation dialog
-#: ../data/buttons-financial.ui.h:62
+#. Title of Sum-of-the-Years
+#: ../data/buttons-financial.ui.h:63
 msgid "Sum-of-the-Years'-Digits Depreciation"
 msgstr "年数总和法折旧"
 
-#. Sum-of-the-Years'-Digits Depreciation Dialog: Description of calculation
-#: ../data/buttons-financial.ui.h:64
+#. Sum-of-the-Years
+#: ../data/buttons-financial.ui.h:65
 msgid ""
 "Calculates the depreciation allowance on an asset for a specified period of "
 "time, using the Sum-of-the-Years'-Digits method. This method of depreciation "
@@ -293,17 +300,17 @@ msgstr ""
 "此前期比后期发生更多折旧费用。可用年限指该资产折旧的周期(通常为年)数。"
 
 #. Title of Payment Period dialog
-#: ../data/buttons-financial.ui.h:66
+#: ../data/buttons-financial.ui.h:67
 msgid "Payment Period"
 msgstr "付款期"
 
 #. Payment Period Dialog: Label before future value input
-#: ../data/buttons-financial.ui.h:68
+#: ../data/buttons-financial.ui.h:69
 msgid "Future _Value:"
 msgstr "未来值(_V)："
 
 #. Payment Period Dialog: Description of calculation
-#: ../data/buttons-financial.ui.h:70
+#: ../data/buttons-financial.ui.h:71
 msgid ""
 "Calculates the number of payment periods that are necessary during the term "
 "of an ordinary annuity, to accumulate a future value, at a periodic interest "
@@ -311,64 +318,64 @@ msgid ""
 msgstr "计算期限内普通年金积累到某一未来值需要的付款期数，按某一每期利率。"
 
 #. Calculates the number of compounding periods necessary to increase an investment of present value pv to a 
future value of fv, at a fixed interest rate of int per compounding period. See also: 
http://en.wikipedia.org/wiki/Compound_interest
-#: ../data/buttons-financial.ui.h:78
+#: ../data/buttons-financial.ui.h:79
 msgid "Ctrm"
 msgstr "复利"
 
 #. Calculates the depreciation allowance on an asset for a specified period of time, using the 
double-declining balance method. See also: http://en.wikipedia.org/wiki/Depreciation
-#: ../data/buttons-financial.ui.h:80
+#: ../data/buttons-financial.ui.h:81
 msgid "Ddb"
 msgstr "Ddb"
 
 #. Calculates the future value of an investment based on a series of equal payments, each of amount pmt, at 
a periodic interest rate of int, over the number of payment periods in the term. See also: 
http://en.wikipedia.org/wiki/Future_value
-#: ../data/buttons-financial.ui.h:82
+#: ../data/buttons-financial.ui.h:83
 msgid "Fv"
 msgstr "Fv"
 
 #. Calculates the number of payment periods that are necessary during the term of an ordinary annuity, to 
accumulate a future value of fv, at a periodic interest rate of int. Each payment is equal to amount pmt. See 
also: http://en.wikipedia.org/wiki/Annuity_(finance_theory)
-#: ../data/buttons-financial.ui.h:84
+#: ../data/buttons-financial.ui.h:85
 msgid "Term"
 msgstr "期数"
 
-#. Calculates the depreciation allowance on an asset for a specified period of time, using the 
Sum-Of-The-Years'-Digits method. This method of depreciation accelerates the rate of depreciation, so that 
more depreciation expense occurs in earlier periods than in later ones. The depreciable cost is cost - 
salvage. The useful life is the number of periods, typically years, over which an asset is depreciated. See 
also: http://en.wikipedia.org/wiki/Depreciation
-#: ../data/buttons-financial.ui.h:86
+#. Calculates the depreciation allowance on an asset for a specified period of time, using the 
Sum-Of-The-Years
+#: ../data/buttons-financial.ui.h:87
 msgid "Syd"
 msgstr "Syd"
 
 #. Calculates the straight-line depreciation of an asset for one period. The depreciable cost is cost - 
salvage. The straight-line method of depreciation divides the depreciable cost evenly over the useful life of 
an asset. The useful life is the number of periods, typically years, over which an asset is depreciated. See 
also: http://en.wikipedia.org/wiki/Depreciation
-#: ../data/buttons-financial.ui.h:88
+#: ../data/buttons-financial.ui.h:89
 msgid "Sln"
 msgstr "Sln"
 
 #. Calculates the periodic interest necessary to increase an investment of present value pv to a future 
value of fv, over the number of compounding periods in term. See also: http://en.wikipedia.org/wiki/Interest
-#: ../data/buttons-financial.ui.h:90
+#: ../data/buttons-financial.ui.h:91
 msgid "Rate"
 msgstr "利率"
 
 #. Calculates the present value of an investment based on a series of equal payments, each of amount pmt, 
discounted at a periodic interest rate of int, over the number of payment periods in the term. See also: 
http://en.wikipedia.org/wiki/Present_value
-#: ../data/buttons-financial.ui.h:92
+#: ../data/buttons-financial.ui.h:93
 msgid "Pv"
 msgstr "Pv"
 
 #. Calculates the amount of the periodic payment of a loan, where payments are made at the end of each 
payment period. See also: http://en.wikipedia.org/wiki/Amortization_schedule
-#: ../data/buttons-financial.ui.h:94
+#: ../data/buttons-financial.ui.h:95
 msgid "Pmt"
 msgstr "Pmt"
 
 #. Calculates the resale price of a product, based on the product cost and the wanted gross profit margin. 
See also: http://en.wikipedia.org/wiki/Gross_profit_margin
-#: ../data/buttons-financial.ui.h:96
+#: ../data/buttons-financial.ui.h:97
 msgid "Gpm"
 msgstr "Gpm"
 
 #. Accessible name for the shift left button
 #. Tooltip for the shift left button
-#: ../data/buttons-programming.ui.h:16 ../src/math-buttons.vala:387
+#: ../data/buttons-programming.ui.h:16 ../src/math-buttons.vala:389
 msgid "Shift Left"
 msgstr "左移"
 
 #. Accessible name for the shift right button
 #. Tooltip for the shift right button
-#: ../data/buttons-programming.ui.h:18 ../src/math-buttons.vala:389
+#: ../data/buttons-programming.ui.h:18 ../src/math-buttons.vala:391
 msgid "Shift Right"
 msgstr "右移"
 
@@ -379,7 +386,7 @@ msgstr "插入字符"
 
 #. Title of insert character code dialog
 #. Tooltip for the insert character code button
-#: ../data/buttons-programming.ui.h:28 ../src/math-buttons.vala:377
+#: ../data/buttons-programming.ui.h:28 ../src/math-buttons.vala:379
 msgid "Insert Character Code"
 msgstr "æ’å…¥å­—ç¬¦ç¼–ç "
 
@@ -389,14 +396,14 @@ msgid "Ch_aracter:"
 msgstr "字符(_A)："
 
 #. Insert ASCII dialog: Button to insert selected character
-#: ../data/buttons-programming.ui.h:32
+#: ../data/buttons-programming.ui.h:33
 msgid "_Insert"
 msgstr "插入(_I)"
 
 #. Program name in the about dialog
 #. Title of main window
-#: ../data/gnome-calculator.desktop.in.h:1 ../src/gnome-calculator.vala:182
-#: ../src/math-window.vala:40
+#: ../data/gnome-calculator.desktop.in.h:1 ../src/gnome-calculator.vala:243
+#: ../src/math-window.vala:44
 msgid "Calculator"
 msgstr "计算器"
 
@@ -409,7 +416,6 @@ msgid "calculation;arithmetic;scientific;financial;"
 msgstr "calculation;arithmetic;scientific;financial;计算;算术;科学;财务;"
 
 #: ../data/gnome-calculator.appdata.xml.in.h:1
-#| msgid "Calculator"
 msgid "GNOME Calculator"
 msgstr "GNOME 计算器"
 
@@ -452,7 +458,7 @@ msgstr ""
 "ç æˆ–è¡¥ç è¿ç®—ã€é€å­—ç¬¦çš„ç¼–ç è½¬æ¢ï¼Œç­‰ç­‰ã€‚"
 
 #. Title of preferences dialog
-#: ../data/menu.ui.h:1 ../src/math-preferences.vala:26
+#: ../data/menu.ui.h:1 ../src/math-preferences.vala:30
 msgid "Preferences"
 msgstr "首选项"
 
@@ -468,29 +474,33 @@ msgstr "关于"
 msgid "Quit"
 msgstr "退出"
 
-#: ../data/menu.ui.h:5 ../src/math-window.vala:109
+#: ../data/menu.ui.h:5 ../src/math-window.vala:156
 msgid "Basic Mode"
 msgstr "基本模式"
 
-#: ../data/menu.ui.h:6 ../src/math-window.vala:114
+#: ../data/menu.ui.h:6 ../src/math-window.vala:161
 msgid "Advanced Mode"
 msgstr "高级模式"
 
-#: ../data/menu.ui.h:7 ../src/math-window.vala:119
+#: ../data/menu.ui.h:7 ../src/math-window.vala:166
 msgid "Financial Mode"
 msgstr "财务模式"
 
-#: ../data/menu.ui.h:8 ../src/math-window.vala:124
+#: ../data/menu.ui.h:8 ../src/math-window.vala:171
 msgid "Programming Mode"
 msgstr "编程模式"
 
+#: ../data/menu.ui.h:9 ../src/math-window.vala:176
+msgid "Keyboard Mode"
+msgstr "键盘模式"
+
 #: ../data/org.gnome.calculator.gschema.xml.h:1
 msgid "Accuracy value"
 msgstr "精确度"
 
 #: ../data/org.gnome.calculator.gschema.xml.h:2
 msgid "The number of digits displayed after the numeric point"
-msgstr "小数点后显示的数字位数"
+msgstr "小数点后显示的数位数"
 
 #: ../data/org.gnome.calculator.gschema.xml.h:3
 msgid "Word size"
@@ -582,6 +592,14 @@ msgstr "ç›®æ ‡å•ä½"
 msgid "Units to convert the current calculation into"
 msgstr "转换到的计量单位"
 
+#: ../data/org.gnome.calculator.gschema.xml.h:25
+msgid "Internal precision"
+msgstr "内部精度"
+
+#: ../data/org.gnome.calculator.gschema.xml.h:26
+msgid "The internal precision used with the MPFR library"
+msgstr "内部精度使用了 MPFR 库。"
+
 #: ../src/currency.vala:28
 msgid "UAE Dirham"
 msgstr "阿联酋迪拉姆"
@@ -715,113 +733,109 @@ msgid "Lithuanian Litas"
 msgstr "立陶宛立特"
 
 #: ../src/currency.vala:61
-msgid "Latvian Lats"
-msgstr "拉脱维亚拉特"
-
-#: ../src/currency.vala:62
 msgid "Libyan Dinar"
 msgstr "利比亚第纳尔"
 
-#: ../src/currency.vala:63
+#: ../src/currency.vala:62
 msgid "Mauritian Rupee"
 msgstr "毛里求斯卢比"
 
-#: ../src/currency.vala:64
+#: ../src/currency.vala:63
 msgid "Mexican Peso"
 msgstr "墨西哥比索"
 
-#: ../src/currency.vala:65
+#: ../src/currency.vala:64
 msgid "Malaysian Ringgit"
 msgstr "马来西亚林吉特"
 
-#: ../src/currency.vala:66
+#: ../src/currency.vala:65
 msgid "Norwegian Krone"
 msgstr "挪威克朗"
 
-#: ../src/currency.vala:67
+#: ../src/currency.vala:66
 msgid "Nepalese Rupee"
 msgstr "尼泊尔卢比"
 
-#: ../src/currency.vala:68
+#: ../src/currency.vala:67
 msgid "New Zealand Dollar"
 msgstr "新西兰元"
 
-#: ../src/currency.vala:69
+#: ../src/currency.vala:68
 msgid "Omani Rial"
 msgstr "阿曼里亚尔"
 
-#: ../src/currency.vala:70
+#: ../src/currency.vala:69
 msgid "Peruvian Nuevo Sol"
 msgstr "秘鲁新索尔"
 
-#: ../src/currency.vala:71
+#: ../src/currency.vala:70
 msgid "Philippine Peso"
 msgstr "菲律宾比索"
 
-#: ../src/currency.vala:72
+#: ../src/currency.vala:71
 msgid "Pakistani Rupee"
 msgstr "巴基斯坦卢比"
 
-#: ../src/currency.vala:73
+#: ../src/currency.vala:72
 msgid "Polish Zloty"
 msgstr "波兰兹罗提"
 
-#: ../src/currency.vala:74
+#: ../src/currency.vala:73
 msgid "Qatari Riyal"
 msgstr "卡塔尔里亚尔"
 
-#: ../src/currency.vala:75
+#: ../src/currency.vala:74
 msgid "New Romanian Leu"
 msgstr "新罗马尼亚列伊"
 
-#: ../src/currency.vala:76
+#: ../src/currency.vala:75
 msgid "Russian Rouble"
 msgstr "俄罗斯卢布"
 
-#: ../src/currency.vala:77
+#: ../src/currency.vala:76
 msgid "Saudi Riyal"
 msgstr "沙特里亚尔"
 
 # 瑞典克郎
-#: ../src/currency.vala:78
+#: ../src/currency.vala:77
 msgid "Swedish Krona"
 msgstr "瑞典克朗"
 
-#: ../src/currency.vala:79
+#: ../src/currency.vala:78
 msgid "Singapore Dollar"
 msgstr "æ–°åŠ å¡å…ƒ"
 
-#: ../src/currency.vala:80
+#: ../src/currency.vala:79
 msgid "Thai Baht"
 msgstr "æ³°é“¢"
 
-#: ../src/currency.vala:81
+#: ../src/currency.vala:80
 msgid "Tunisian Dinar"
 msgstr "突尼斯第纳尔"
 
 # 土耳其新里拉
-#: ../src/currency.vala:82
+#: ../src/currency.vala:81
 msgid "New Turkish Lira"
 msgstr "新土尔其里拉"
 
 # Trinidad and Tobago Dollar
-#: ../src/currency.vala:83
+#: ../src/currency.vala:82
 msgid "T&T Dollar (TTD)"
 msgstr "特立尼达和多巴哥元"
 
-#: ../src/currency.vala:84
+#: ../src/currency.vala:83
 msgid "US Dollar"
 msgstr "美元"
 
-#: ../src/currency.vala:85
+#: ../src/currency.vala:84
 msgid "Uruguayan Peso"
 msgstr "乌拉圭比索"
 
-#: ../src/currency.vala:86
+#: ../src/currency.vala:85
 msgid "Venezuelan Bolívar"
 msgstr "委内瑞拉玻利瓦尔"
 
-#: ../src/currency.vala:87
+#: ../src/currency.vala:86
 msgid "South African Rand"
 msgstr "南非兰特"
 
@@ -829,13 +843,25 @@ msgstr "南非兰特"
 msgid "Error: the number of periods must be positive"
 msgstr "错误：周期必须为正数"
 
+#: ../src/gnome-calculator.vala:21
+msgid "Solve given equation"
+msgstr "求解给出的方程"
+
+#: ../src/gnome-calculator.vala:22
+msgid "Start with given equation"
+msgstr "从给出的方程开始"
+
+#: ../src/gnome-calculator.vala:23
+msgid "Show release version"
+msgstr "显示版本信息"
+
 #. Translators: Error message displayed when unable to launch help browser
-#: ../src/gnome-calculator.vala:147
+#: ../src/gnome-calculator.vala:208
 msgid "Unable to open help file"
 msgstr "æ— æ³•æ‰“å¼€å¸®åŠ©æ–‡ä»¶"
 
 #. The translator credits. Please translate this with your name (s).
-#: ../src/gnome-calculator.vala:177
+#: ../src/gnome-calculator.vala:238
 msgid "translator-credits"
 msgstr ""
 "Funda Wang <fundawang linux net cn>, 2003, 2004\n"
@@ -848,302 +874,289 @@ msgstr ""
 "vicwjb <vicwjb gmail com>, 2010\n"
 "Tao Wang <dancefire gmail com>, 2010\n"
 "朱涛 <bill_zt sina com>, 2010\n"
-"tuhaihe <1132321739qq gmail com>, 2013"
+"tuhaihe <1132321739qq gmail com>, 2013\n"
+"zhouxiaobo <zhouxiaobo 500 gmail com>, 2015"
 
-#: ../src/gnome-calculator.vala:183
+#: ../src/gnome-calculator.vala:244
 msgid "About Calculator"
 msgstr "关于计算器"
 
 #. Short description in the about dialog
-#: ../src/gnome-calculator.vala:190
+#: ../src/gnome-calculator.vala:252
 msgid "Calculator with financial and scientific modes."
 msgstr "带有财务和科学模式的计算器。"
 
-#: ../src/gnome-calculator.vala:223
-msgid "Solve given equation"
-msgstr "求解给出的方程"
-
-#: ../src/gnome-calculator.vala:231
-msgid "Start with given equation"
-msgstr "从给出的方程开始"
-
-#: ../src/gnome-calculator.vala:240
-msgid "Show release version"
-msgstr "显示版本信息"
-
 #. Configure buttons
 #. Tooltip for the Pi button
-#: ../src/math-buttons.vala:291
+#: ../src/math-buttons.vala:292
 msgid "Pi [Ctrl+P]"
 msgstr "圆周率 [Ctrl+P]"
 
 #. Tooltip for the Euler's Number button
-#: ../src/math-buttons.vala:293
+#: ../src/math-buttons.vala:294
 msgid "Euler’s Number"
 msgstr "欧拉数"
 
 #. Tooltip for the subscript button
-#: ../src/math-buttons.vala:297
+#: ../src/math-buttons.vala:298
 msgid "Subscript mode [Alt]"
 msgstr "ä¸‹æ ‡æ¨¡å¼ [Alt]"
 
 #. Tooltip for the superscript button
-#: ../src/math-buttons.vala:299
+#: ../src/math-buttons.vala:300
 msgid "Superscript mode [Ctrl]"
 msgstr "ä¸Šæ ‡æ¨¡å¼ [Ctrl]"
 
 #. Tooltip for the scientific exponent button
-#: ../src/math-buttons.vala:301
+#: ../src/math-buttons.vala:302
 msgid "Scientific exponent [Ctrl+E]"
 msgstr "科学记数法 [Ctrl+E]"
 
 #. Tooltip for the add button
-#: ../src/math-buttons.vala:303
+#: ../src/math-buttons.vala:304
 msgid "Add [+]"
 msgstr "åŠ æ³• [+]"
 
 #. Tooltip for the subtract button
-#: ../src/math-buttons.vala:305
+#: ../src/math-buttons.vala:306
 msgid "Subtract [-]"
 msgstr "减法 [-]"
 
 #. Tooltip for the multiply button
-#: ../src/math-buttons.vala:307
+#: ../src/math-buttons.vala:308
 msgid "Multiply [*]"
 msgstr "乘法 [*]"
 
 #. Tooltip for the divide button
-#: ../src/math-buttons.vala:309
+#: ../src/math-buttons.vala:310
 msgid "Divide [/]"
 msgstr "除法 [/]"
 
 #. Tooltip for the modulus divide button
-#: ../src/math-buttons.vala:311
+#: ../src/math-buttons.vala:312
 msgid "Modulus divide"
 msgstr "求余数"
 
 #. Tooltip for the additional functions button
-#: ../src/math-buttons.vala:313
+#: ../src/math-buttons.vala:314
 msgid "Additional Functions"
 msgstr "é™„åŠ å‡½æ•°"
 
 #. Tooltip for the exponent button
-#: ../src/math-buttons.vala:315
+#: ../src/math-buttons.vala:316
 msgid "Exponent [^ or **]"
 msgstr "乘方 [^ 或 **]"
 
 #. Tooltip for the percentage button
-#: ../src/math-buttons.vala:317
+#: ../src/math-buttons.vala:318
 msgid "Percentage [%]"
 msgstr "百分数 [%]"
 
 #. Tooltip for the factorial button
-#: ../src/math-buttons.vala:319
+#: ../src/math-buttons.vala:320
 msgid "Factorial [!]"
 msgstr "阶乘 [!]"
 
 #. Tooltip for the absolute value button
-#: ../src/math-buttons.vala:321
+#: ../src/math-buttons.vala:322
 msgid "Absolute value [|]"
 msgstr "绝对值 [|]"
 
 #. Tooltip for the complex argument component button
-#: ../src/math-buttons.vala:323
+#: ../src/math-buttons.vala:324
 msgid "Complex argument"
 msgstr "复变量"
 
 #. Tooltip for the complex conjugate button
-#: ../src/math-buttons.vala:325
+#: ../src/math-buttons.vala:326
 msgid "Complex conjugate"
 msgstr "复共轭"
 
 #. Tooltip for the root button
-#: ../src/math-buttons.vala:327
+#: ../src/math-buttons.vala:328
 msgid "Root [Ctrl+R]"
 msgstr "æ ¹ [Ctrl+R]"
 
 #. Tooltip for the square root button
-#: ../src/math-buttons.vala:329
+#: ../src/math-buttons.vala:330
 msgid "Square root [Ctrl+R]"
 msgstr "å¹³æ–¹æ ¹ [Ctrl+R]"
 
 #. Tooltip for the logarithm button
-#: ../src/math-buttons.vala:331
+#: ../src/math-buttons.vala:332
 msgid "Logarithm"
 msgstr "常用对数(以 10 为底)"
 
 #. Tooltip for the natural logarithm button
-#: ../src/math-buttons.vala:333
+#: ../src/math-buttons.vala:334
 msgid "Natural Logarithm"
 msgstr "自然对数(以 e 为底)"
 
 #. Tooltip for the sine button
-#: ../src/math-buttons.vala:335
+#: ../src/math-buttons.vala:336
 msgid "Sine"
 msgstr "正弦"
 
 #. Tooltip for the cosine button
-#: ../src/math-buttons.vala:337
+#: ../src/math-buttons.vala:338
 msgid "Cosine"
 msgstr "余弦"
 
 #. Tooltip for the tangent button
-#: ../src/math-buttons.vala:339
+#: ../src/math-buttons.vala:340
 msgid "Tangent"
 msgstr "正切"
 
 #. Tooltip for the hyperbolic sine button
-#: ../src/math-buttons.vala:341
+#: ../src/math-buttons.vala:342
 msgid "Hyperbolic Sine"
 msgstr "双曲正弦"
 
 #. Tooltip for the hyperbolic cosine button
-#: ../src/math-buttons.vala:343
+#: ../src/math-buttons.vala:344
 msgid "Hyperbolic Cosine"
 msgstr "双曲余弦"
 
 #. Tooltip for the hyperbolic tangent button
-#: ../src/math-buttons.vala:345
+#: ../src/math-buttons.vala:346
 msgid "Hyperbolic Tangent"
 msgstr "双曲正切"
 
 #. Tooltip for the inverse button
-#: ../src/math-buttons.vala:347
+#: ../src/math-buttons.vala:348
 msgid "Inverse [Ctrl+I]"
 msgstr "反函数或倒数 [Ctrl+I]"
 
 #. Tooltip for the boolean AND button
-#: ../src/math-buttons.vala:349
+#: ../src/math-buttons.vala:350
 msgid "Boolean AND"
 msgstr "逻辑与"
 
 #. Tooltip for the boolean OR button
-#: ../src/math-buttons.vala:351
+#: ../src/math-buttons.vala:352
 msgid "Boolean OR"
 msgstr "逻辑或"
 
 #. Tooltip for the exclusive OR button
-#: ../src/math-buttons.vala:353
+#: ../src/math-buttons.vala:354
 msgid "Boolean Exclusive OR"
 msgstr "逻辑异或"
 
 #. Tooltip for the boolean NOT button
-#: ../src/math-buttons.vala:355
+#: ../src/math-buttons.vala:356
 msgid "Boolean NOT"
 msgstr "逻辑非"
 
 #. Tooltip for the integer component button
-#: ../src/math-buttons.vala:357
+#: ../src/math-buttons.vala:358
 msgid "Integer Component"
 msgstr "整数部分"
 
 #. Tooltip for the fractional component button
-#: ../src/math-buttons.vala:359
+#: ../src/math-buttons.vala:360
 msgid "Fractional Component"
 msgstr "小数部分"
 
 #. Tooltip for the real component button
-#: ../src/math-buttons.vala:361
+#: ../src/math-buttons.vala:362
 msgid "Real Component"
 msgstr "实数部分"
 
 #. Tooltip for the imaginary component button
-#: ../src/math-buttons.vala:363
+#: ../src/math-buttons.vala:364
 msgid "Imaginary Component"
 msgstr "虚数部分"
 
 #. Tooltip for the ones' complement button
-#: ../src/math-buttons.vala:365
+#: ../src/math-buttons.vala:366
 msgid "Ones' Complement"
 msgstr "åç "
 
 #. Tooltip for the two's complement button
-#: ../src/math-buttons.vala:367
+#: ../src/math-buttons.vala:368
 msgid "Two's Complement"
 msgstr "è¡¥ç "
 
 #. Tooltip for the truncate button
-#: ../src/math-buttons.vala:369
-msgid "Truncate"
-msgstr "截断"
-
+#. FIXME : Can be Added Once the support is available at the back-end
+#. setup_button (builder, "trunc",              "trunc ", _("Truncate"));
 #. Tooltip for the start group button
-#: ../src/math-buttons.vala:371
+#: ../src/math-buttons.vala:373
 msgid "Start Group [(]"
 msgstr "开始组 [(]"
 
 #. Tooltip for the end group button
-#: ../src/math-buttons.vala:373
+#: ../src/math-buttons.vala:375
 msgid "End Group [)]"
 msgstr "结束组 [)]"
 
 #. Tooltip for the solve button
-#: ../src/math-buttons.vala:379
+#: ../src/math-buttons.vala:381
 msgid "Calculate Result"
 msgstr "计算结果"
 
 #. Tooltip for the factor button
-#: ../src/math-buttons.vala:381
+#: ../src/math-buttons.vala:383
 msgid "Factorize [Ctrl+F]"
 msgstr "è´¨å› æ•°åˆ†è§£ [Ctrl+F]"
 
 #. Tooltip for the clear button
-#: ../src/math-buttons.vala:383
+#: ../src/math-buttons.vala:385
 msgid "Clear Display [Escape]"
 msgstr "清除显示 [Escape]"
 
 #. Tooltip for the undo button
-#: ../src/math-buttons.vala:385
+#: ../src/math-buttons.vala:387
 msgid "Undo [Ctrl+Z]"
 msgstr "撤销 [Ctrl+Z]"
 
 #. Tooltip for the double declining depreciation button
-#: ../src/math-buttons.vala:393
+#: ../src/math-buttons.vala:395
 msgid "Double Declining Depreciation"
 msgstr "双倍余额递减折旧"
 
 #. Tooltip for the financial term button
-#: ../src/math-buttons.vala:397
+#: ../src/math-buttons.vala:399
 msgid "Financial Term"
 msgstr "财务"
 
 #. Tooltip for the sum of the years digits depreciation button
-#: ../src/math-buttons.vala:399
+#: ../src/math-buttons.vala:401
 msgid "Sum of the Years Digits Depreciation"
 msgstr "年数总和法折旧"
 
 #. Tooltip for the straight line depreciation button
-#: ../src/math-buttons.vala:401
+#: ../src/math-buttons.vala:403
 msgid "Straight Line Depreciation"
 msgstr "直线折旧"
 
-#: ../src/math-buttons.vala:430
+#: ../src/math-buttons.vala:432
 msgid "Square [Ctrl+2]"
 msgstr "平方 [Ctrl+2]"
 
 #. Number display mode combo: Binary, e.g. 10011010010â‚‚
-#: ../src/math-buttons.vala:520
+#: ../src/math-buttons.vala:522
 msgid "Binary"
 msgstr "二进制"
 
 #. Number display mode combo: Octal, e.g. 2322₈
-#: ../src/math-buttons.vala:524
+#: ../src/math-buttons.vala:526
 msgid "Octal"
 msgstr "八进制"
 
 #. Number display mode combo: Decimal, e.g. 1234
-#: ../src/math-buttons.vala:528
+#: ../src/math-buttons.vala:530
 msgid "Decimal"
 msgstr "十进制"
 
 #. Number display mode combo: Hexadecimal, e.g. 4D2₁₆
-#: ../src/math-buttons.vala:532
+#: ../src/math-buttons.vala:534
 msgid "Hexadecimal"
 msgstr "十六进制"
 
 #. Left Shift Popup: Menu item to shift left by n places (n < 10)
 #. Right Shift Popup: Menu item to shift right by n places (n < 10)
-#: ../src/math-buttons.vala:741 ../src/math-buttons.vala:778
+#: ../src/math-buttons.vala:744 ../src/math-buttons.vala:781
 #, c-format
 msgid "_%d place"
 msgid_plural "_%d places"
@@ -1151,7 +1164,7 @@ msgstr[0] "_%d 位"
 
 #. Left Shift Popup: Menu item to shift left by n places (n >= 10)
 #. Right Shift Popup: Menu item to shift right by n places (n >= 10)
-#: ../src/math-buttons.vala:746 ../src/math-buttons.vala:783
+#: ../src/math-buttons.vala:749 ../src/math-buttons.vala:786
 #, c-format
 msgid "%d place"
 msgid_plural "%d places"
@@ -1173,274 +1186,267 @@ msgid "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 msgstr "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
 
 #. Error shown when trying to undo with no undo history
-#: ../src/math-equation.vala:482
+#: ../src/math-equation.vala:504
 msgid "No undo history"
 msgstr "æ— æ’¤é”€è®°å½•"
 
 #. Error shown when trying to redo with no redo history
-#: ../src/math-equation.vala:499
+#: ../src/math-equation.vala:528
 msgid "No redo history"
 msgstr "æ— é‡åšè®°å½•"
 
-#: ../src/math-equation.vala:729
+#: ../src/math-equation.vala:751
 msgid "No sane value to store"
 msgstr "æ²¡æœ‰è¦å­˜å‚¨çš„æ ‡å‡†å€¼"
 
 #. Error displayed to user when they perform a bitwise operation on numbers greater than the current word
-#: ../src/math-equation.vala:911
+#: ../src/math-equation.vala:944
 msgid "Overflow. Try a bigger word size"
 msgstr "溢出。请尝试一个更大的字长"
 
 #. Error displayed to user when they an unknown variable is entered
-#: ../src/math-equation.vala:916
+#: ../src/math-equation.vala:949
 #, c-format
 msgid "Unknown variable '%s'"
 msgstr "未知变量“%s”"
 
 #. Error displayed to user when an unknown function is entered
-#: ../src/math-equation.vala:923
+#: ../src/math-equation.vala:956
 #, c-format
 msgid "Function '%s' is not defined"
 msgstr "函数“%s”未定义"
 
 #. Error displayed to user when an conversion with unknown units is attempted
-#: ../src/math-equation.vala:930
+#: ../src/math-equation.vala:963
 msgid "Unknown conversion"
 msgstr "未知转换"
 
-#: ../src/math-equation.vala:938
+#. should always be run
+#: ../src/math-equation.vala:973
 #, c-format
-msgid "Malformed expression at token '%s'"
-msgstr "“%sâ€é™„è¿‘è¡¨è¾¾å¼æ ¼å¼é”™è¯¯"
+msgid "%s"
+msgstr "%s"
 
 #. Unknown error.
 #. Error displayed to user when they enter an invalid calculation
-#: ../src/math-equation.vala:943 ../src/math-equation.vala:948
+#: ../src/math-equation.vala:978 ../src/math-equation.vala:983
 msgid "Malformed expression"
 msgstr "è¡¨è¾¾å¼æ ¼å¼é”™è¯¯"
 
-#: ../src/math-equation.vala:959
+#: ../src/math-equation.vala:994
 msgid "Calculating"
 msgstr "正在计算"
 
 #. Error displayed when trying to factorize a non-integer value
-#: ../src/math-equation.vala:1086
+#: ../src/math-equation.vala:1187
 msgid "Need an integer to factorize"
 msgstr "åˆ†è§£å› å¼è¿ç®—éœ€è¦ä¸€ä¸ªæ•´æ•°"
 
 #. This message is displayed in the status bar when a bit shift operation is performed and the display does 
not contain a number
-#: ../src/math-equation.vala:1140
+#: ../src/math-equation.vala:1241
 msgid "No sane value to bitwise shift"
 msgstr "没有正常数值可用于移位"
 
 #. Message displayed when cannot toggle bit in display
-#: ../src/math-equation.vala:1154
+#: ../src/math-equation.vala:1255
 msgid "Displayed value not an integer"
 msgstr "显示的值不是整数"
 
-#. Label on close button in preferences dialog
-#: ../src/math-preferences.vala:29
-msgid "_Close"
-msgstr "关闭(_C)"
-
 #. Preferences dialog: Label for number format combo box
-#: ../src/math-preferences.vala:39
+#: ../src/math-preferences.vala:43
 msgid "Number _Format:"
 msgstr "æ•°å­—æ ¼å¼(_F)："
 
 #. Number display mode combo: Automatic, e.g. 1234 (or scientific for large number 1.234×10^99)
-#: ../src/math-preferences.vala:56
+#: ../src/math-preferences.vala:60
 msgid "Automatic"
 msgstr "自动"
 
 #. Number display mode combo: Fixed, e.g. 1234
-#: ../src/math-preferences.vala:60
+#: ../src/math-preferences.vala:64
 msgid "Fixed"
 msgstr "定点数"
 
 #. Number display mode combo: Scientific, e.g. 1.234×10^3
-#: ../src/math-preferences.vala:64
+#: ../src/math-preferences.vala:68
 msgid "Scientific"
 msgstr "科学"
 
 #. Number display mode combo: Engineering, e.g. 1.234k
-#: ../src/math-preferences.vala:68
+#: ../src/math-preferences.vala:72
 msgid "Engineering"
 msgstr "工程"
 
 #. Label used in preferences dialog.  The %d is replaced by a spinbutton
-#: ../src/math-preferences.vala:88
+#: ../src/math-preferences.vala:90
 #, c-format
 msgid "Show %d decimal _places"
 msgstr "显示 %d 个十进制位(_P)"
 
 #. Preferences dialog: label for show trailing zeroes check button
-#: ../src/math-preferences.vala:115
+#: ../src/math-preferences.vala:117
 msgid "Show trailing _zeroes"
 msgstr "显示末位零(_Z)"
 
 #. Preferences dialog: label for show show thousands separator check button
-#: ../src/math-preferences.vala:121
+#: ../src/math-preferences.vala:123
 msgid "Show _thousands separators"
 msgstr "显示千位分隔符(_T)"
 
 #. Preferences dialog: Label for angle unit combo box
-#: ../src/math-preferences.vala:127
+#: ../src/math-preferences.vala:129
 msgid "_Angle units:"
 msgstr "角度单位(_A)："
 
 #. Preferences dialog: Angle unit combo box: Use degrees for trigonometric calculations
 #. FIXME: Approximations of 1/(units in a circle), therefore, 360 deg != 400 grads
-#: ../src/math-preferences.vala:143 ../src/unit.vala:38
+#: ../src/math-preferences.vala:145 ../src/unit.vala:39
 msgid "Degrees"
 msgstr "角度"
 
 #. Preferences dialog: Angle unit combo box: Use radians for trigonometric calculations
-#: ../src/math-preferences.vala:147 ../src/unit.vala:39
+#: ../src/math-preferences.vala:149 ../src/unit.vala:40
 msgid "Radians"
 msgstr "弧度"
 
 #. Preferences dialog: Angle unit combo box: Use gradians for trigonometric calculations
-#: ../src/math-preferences.vala:151 ../src/unit.vala:40
+#: ../src/math-preferences.vala:153 ../src/unit.vala:41
 msgid "Gradians"
 msgstr "百分度"
 
 #. Preferences dialog: Label for word size combo box
-#: ../src/math-preferences.vala:157
+#: ../src/math-preferences.vala:159
 msgid "Word _size:"
 msgstr "字长(_S)："
 
 #. Word size combo: 8 bits
-#: ../src/math-preferences.vala:171
+#: ../src/math-preferences.vala:173
 msgid "8 bits"
 msgstr "8 位"
 
 #. Word size combo: 16 bits
-#: ../src/math-preferences.vala:173
+#: ../src/math-preferences.vala:175
 msgid "16 bits"
 msgstr "16 位"
 
 #. Word size combo: 32 bits
-#: ../src/math-preferences.vala:175
+#: ../src/math-preferences.vala:177
 msgid "32 bits"
 msgstr "32 位"
 
 #. Word size combo: 64 bits
-#: ../src/math-preferences.vala:177
+#: ../src/math-preferences.vala:179
 msgid "64 bits"
 msgstr "64 位"
 
-#: ../src/math-window.vala:137
+#: ../src/math-window.vala:204
 msgid "_Quit"
 msgstr "退出(_Q)"
 
+#. Translators: Error displayed when underflow error occured
+#: ../src/number.vala:242
+msgid "Underflow error"
+msgstr "下溢错误"
+
+#. Translators: Error displayed when overflow error occured
+#: ../src/number.vala:247
+msgid "Overflow error"
+msgstr "溢出错误"
+
 #. Translators: Error display when attempting to take argument of zero
-#: ../src/number.vala:652
+#: ../src/number.vala:314
 msgid "Argument not defined for zero"
 msgstr "参数值不能为零"
 
 #. Translators: Error displayed when attempted to raise 0 to a negative re_exponent
-#: ../src/number.vala:909 ../src/number.vala:1943
+#: ../src/number.vala:489 ../src/number.vala:541 ../src/number.vala:589
 msgid "The power of zero is undefined for a negative exponent"
 msgstr "负数的零次幂未定义"
 
 #. Translators: Error displayed when attempted to raise 0 to power of zero
-#: ../src/number.vala:917
-#| msgid "Reciprocal of zero is undefined"
+#: ../src/number.vala:497 ../src/number.vala:549
 msgid "Zero raised to zero is undefined"
 msgstr "å¯¹é›¶æ±‚å¹‚æ— æ„ä¹‰"
 
 #. Translators: Error displayed when attempting to take logarithm of zero
-#: ../src/number.vala:1003 ../src/number.vala:1036
+#: ../src/number.vala:639 ../src/number.vala:672
 msgid "Logarithm of zero is undefined"
 msgstr "零的对数未定义"
 
 #. Translators: Error displayed when attempted take the factorial of a negative or complex number
-#: ../src/number.vala:1058
+#: ../src/number.vala:694
 msgid "Factorial is only defined for non-negative real numbers"
 msgstr "阶乘运算仅对非负实数有定义"
 
 #. Translators: Error displayed attempted to divide by zero
-#: ../src/number.vala:1142 ../src/number.vala:2644
+#: ../src/number.vala:802
 msgid "Division by zero is undefined"
 msgstr "被零除未定义"
 
 #. Translators: Error displayed when attemping to do a modulus division on non-integer numbers
-#: ../src/number.vala:1182
+#: ../src/number.vala:842
 msgid "Modulus division is only defined for integers"
 msgstr "取模运算仅对整数有意义"
 
 #. Translators: Error displayed when tangent value is undefined
-#: ../src/number.vala:1274
+#: ../src/number.vala:936
 msgid ""
 "Tangent is undefined for angles that are multiples of π (180°) from π∕2 (90°)"
 msgstr "正切函数对 (n+1/2)*Ï€ (90°，270°...) æ— æ„ä¹‰"
 
 #. Translators: Error displayed when inverse sine value is undefined
-#: ../src/number.vala:1312
+#: ../src/number.vala:952
 msgid "Inverse sine is undefined for values outside [-1, 1]"
 msgstr "反正弦函数在 [-1，1] èŒƒå›´ä¹‹å¤–æ— æ„ä¹‰"
 
 #. Translators: Error displayed when inverse cosine value is undefined
-#: ../src/number.vala:1327
+#: ../src/number.vala:968
 msgid "Inverse cosine is undefined for values outside [-1, 1]"
 msgstr "反余弦函数在 [-1,1] èŒƒå›´ä¹‹å¤–æ— æ„ä¹‰"
 
 #. Translators: Error displayed when inverse hyperbolic cosine value is undefined
-#: ../src/number.vala:1524
+#: ../src/number.vala:1031
 msgid "Inverse hyperbolic cosine is undefined for values less than one"
 msgstr "对小于 1 çš„æ•°æ±‚ååŒæ›²ä½™å¼¦å‡½æ•°æ— æ„ä¹‰"
 
 #. Translators: Error displayed when inverse hyperbolic tangent value is undefined
-#: ../src/number.vala:1543
+#: ../src/number.vala:1048
 msgid "Inverse hyperbolic tangent is undefined for values outside [-1, 1]"
 msgstr "反双曲正切函数在 [-1,1] èŒƒå›´ä¹‹å¤–æ— æ„ä¹‰"
 
 #. Translators: Error displayed when boolean AND attempted on non-integer values
-#: ../src/number.vala:1562
+#: ../src/number.vala:1065
 msgid "Boolean AND is only defined for positive integers"
 msgstr "逻辑与运算只对正整数有定义"
 
 #. Translators: Error displayed when boolean OR attempted on non-integer values
-#: ../src/number.vala:1574
+#: ../src/number.vala:1077
 msgid "Boolean OR is only defined for positive integers"
 msgstr "逻辑或运算只对正整数定义"
 
 #. Translators: Error displayed when boolean XOR attempted on non-integer values
-#: ../src/number.vala:1586
+#: ../src/number.vala:1089
 msgid "Boolean XOR is only defined for positive integers"
 msgstr "逻辑异或运算只对正整数定义"
 
 #. Translators: Error displayed when boolean XOR attempted on non-integer values
-#: ../src/number.vala:1598
+#: ../src/number.vala:1101
 msgid "Boolean NOT is only defined for positive integers"
 msgstr "逻辑非运算只对正整数定义"
 
 #. Translators: Error displayed when bit shift attempted on non-integer values
-#: ../src/number.vala:1621
+#: ../src/number.vala:1124
 msgid "Shift is only possible on integer values"
 msgstr "只能对整数值进行移位运算"
 
-#: ../src/number.vala:1963
-msgid "Root must be non-zero"
-msgstr "æ ¹æ¬¡æ–¹æ•°å¿…éœ€ä¸ºéžé›¶å€¼"
-
-#: ../src/number.vala:1980
-msgid "Negative root of zero is undefined"
-msgstr "é›¶çš„è´Ÿæ•°æ¬¡æ–¹æ ¹æ— æ„ä¹‰"
-
-#: ../src/number.vala:1987
-msgid "nth root of negative number is undefined for even n"
-msgstr "å¯¹è´Ÿæ•°æ±‚å¶æ¬¡æ–¹æ ¹æ— æ„ä¹‰"
-
-#: ../src/number.vala:2261
-msgid "Overflow: the result couldn't be calculated"
-msgstr "æº¢å‡ºï¼šè¯¥ç»“æžœæ— æ³•è®¡ç®—"
-
-#: ../src/number.vala:2589
+#: ../src/number.vala:1296
 msgid "Reciprocal of zero is undefined"
 msgstr "å¯¹é›¶æ±‚å€’æ•°æ— æ„ä¹‰"
 
+#: ../src/serializer.vala:332
+msgid "Precision error"
+msgstr "精度错误"
+
 #: ../src/unit.vala:29
 msgid "Angle"
 msgstr "角度"
@@ -1469,710 +1475,1253 @@ msgstr "时长"
 msgid "Temperature"
 msgstr "温度"
 
-#: ../src/unit.vala:38
+#: ../src/unit.vala:36
+msgid "Digital Storage"
+msgstr "数字的储存"
+
+#: ../src/unit.vala:39
 #, c-format
 msgctxt "unit-format"
 msgid "%s degrees"
 msgstr "%s degrees"
 
-#: ../src/unit.vala:38
+#: ../src/unit.vala:39
 msgctxt "unit-symbols"
 msgid "degree,degrees,deg"
 msgstr "degree,degrees,deg"
 
-#: ../src/unit.vala:39
+#: ../src/unit.vala:40
 #, c-format
 msgctxt "unit-format"
 msgid "%s radians"
 msgstr "%s radians"
 
-#: ../src/unit.vala:39
+#: ../src/unit.vala:40
 msgctxt "unit-symbols"
 msgid "radian,radians,rad"
 msgstr "radian,radians,rad"
 
-#: ../src/unit.vala:40
+#: ../src/unit.vala:41
 #, c-format
 msgctxt "unit-format"
 msgid "%s gradians"
 msgstr "%s gradians"
 
-#: ../src/unit.vala:40
+#: ../src/unit.vala:41
 msgctxt "unit-symbols"
 msgid "gradian,gradians,grad"
 msgstr "gradian,gradians,grad"
 
-#: ../src/unit.vala:41
+#: ../src/unit.vala:42
 msgid "Parsecs"
 msgstr "秒差距"
 
-#: ../src/unit.vala:41
+#: ../src/unit.vala:42
 #, c-format
 msgctxt "unit-format"
 msgid "%s pc"
 msgstr "%s pc"
 
-#: ../src/unit.vala:41
+#: ../src/unit.vala:42
 msgctxt "unit-symbols"
 msgid "parsec,parsecs,pc"
 msgstr "parsec,parsecs,pc"
 
-#: ../src/unit.vala:42
+#: ../src/unit.vala:43
 msgid "Light Years"
 msgstr "光年"
 
-#: ../src/unit.vala:42
+#: ../src/unit.vala:43
 #, c-format
 msgctxt "unit-format"
 msgid "%s ly"
 msgstr "%s ly"
 
-#: ../src/unit.vala:42
+#: ../src/unit.vala:43
 msgctxt "unit-symbols"
 msgid "lightyear,lightyears,ly"
 msgstr "lightyear,lightyears,ly"
 
-#: ../src/unit.vala:43
+#: ../src/unit.vala:44
 msgid "Astronomical Units"
 msgstr "天文单位"
 
-#: ../src/unit.vala:43
+#: ../src/unit.vala:44
 #, c-format
 msgctxt "unit-format"
 msgid "%s au"
 msgstr "%s au"
 
-#: ../src/unit.vala:43
+#: ../src/unit.vala:44
 msgctxt "unit-symbols"
 msgid "au"
 msgstr "au"
 
-#: ../src/unit.vala:44
+#: ../src/unit.vala:45
 msgid "Nautical Miles"
 msgstr "海里"
 
-#: ../src/unit.vala:44
+#: ../src/unit.vala:45
 #, c-format
 msgctxt "unit-format"
 msgid "%s nmi"
 msgstr "%s nmi"
 
-#: ../src/unit.vala:44
+#: ../src/unit.vala:45
 msgctxt "unit-symbols"
 msgid "nmi"
 msgstr "nmi"
 
-#: ../src/unit.vala:45
+#: ../src/unit.vala:46
 msgid "Miles"
 msgstr "英里"
 
-#: ../src/unit.vala:45
+#: ../src/unit.vala:46
 #, c-format
 msgctxt "unit-format"
 msgid "%s mi"
 msgstr "%s mi"
 
-#: ../src/unit.vala:45
+#: ../src/unit.vala:46
 msgctxt "unit-symbols"
 msgid "mile,miles,mi"
 msgstr "mile,miles,mi"
 
-#: ../src/unit.vala:46
+#: ../src/unit.vala:47
 msgid "Kilometers"
 msgstr "千米"
 
-#: ../src/unit.vala:46
+#: ../src/unit.vala:47
 #, c-format
 msgctxt "unit-format"
 msgid "%s km"
 msgstr "%s km"
 
-#: ../src/unit.vala:46
+#: ../src/unit.vala:47
 msgctxt "unit-symbols"
 msgid "kilometer,kilometers,km,kms"
 msgstr "kilometer,kilometers,km,kms"
 
-#: ../src/unit.vala:47
+#: ../src/unit.vala:48
 msgid "Cables"
 msgstr "链长"
 
-#: ../src/unit.vala:47
+#: ../src/unit.vala:48
 #, c-format
 msgctxt "unit-format"
 msgid "%s cb"
 msgstr "%s cb"
 
-#: ../src/unit.vala:47
+#: ../src/unit.vala:48
 msgctxt "unit-symbols"
 msgid "cable,cables,cb"
 msgstr "cable,cables,cb"
 
-#: ../src/unit.vala:48
+#: ../src/unit.vala:49
 msgid "Fathoms"
 msgstr "英寻"
 
-#: ../src/unit.vala:48
+#: ../src/unit.vala:49
 #, c-format
 msgctxt "unit-format"
 msgid "%s ftm"
 msgstr "%s ftm"
 
-#: ../src/unit.vala:48
+#: ../src/unit.vala:49
 msgctxt "unit-symbols"
 msgid "fathom,fathoms,ftm"
 msgstr "fathom,fathoms,ftm"
 
-#: ../src/unit.vala:49
+#: ../src/unit.vala:50
 msgid "Meters"
 msgstr "ç±³"
 
-#: ../src/unit.vala:49
+#: ../src/unit.vala:50
 #, c-format
 msgctxt "unit-format"
 msgid "%s m"
 msgstr "%s m"
 
-#: ../src/unit.vala:49
+#: ../src/unit.vala:50
 msgctxt "unit-symbols"
 msgid "meter,meters,m"
 msgstr "meter,meters,m"
 
-#: ../src/unit.vala:50
+#: ../src/unit.vala:51
 msgid "Yards"
 msgstr "ç "
 
-#: ../src/unit.vala:50
+#: ../src/unit.vala:51
 #, c-format
 msgctxt "unit-format"
 msgid "%s yd"
 msgstr "%s yd"
 
-#: ../src/unit.vala:50
+#: ../src/unit.vala:51
 msgctxt "unit-symbols"
 msgid "yard,yards,yd"
 msgstr "yard,yards,yd"
 
-#: ../src/unit.vala:51
+#: ../src/unit.vala:52
 msgid "Feet"
 msgstr "英尺"
 
-#: ../src/unit.vala:51
+#: ../src/unit.vala:52
 #, c-format
 msgctxt "unit-format"
 msgid "%s ft"
 msgstr "%s ft"
 
-#: ../src/unit.vala:51
+#: ../src/unit.vala:52
 msgctxt "unit-symbols"
 msgid "foot,feet,ft"
 msgstr "foot,feet,ft"
 
-#: ../src/unit.vala:52
+#: ../src/unit.vala:53
 msgid "Inches"
 msgstr "英寸"
 
-#: ../src/unit.vala:52
+#: ../src/unit.vala:53
 #, c-format
 msgctxt "unit-format"
 msgid "%s in"
 msgstr "%s in"
 
-#: ../src/unit.vala:52
+#: ../src/unit.vala:53
 msgctxt "unit-symbols"
 msgid "inch,inches,in"
 msgstr "inch,inches,in"
 
-#: ../src/unit.vala:53
+#: ../src/unit.vala:54
 msgid "Centimeters"
 msgstr "厘米"
 
-#: ../src/unit.vala:53
+#: ../src/unit.vala:54
 #, c-format
 msgctxt "unit-format"
 msgid "%s cm"
 msgstr "%s cm"
 
-#: ../src/unit.vala:53
+#: ../src/unit.vala:54
 msgctxt "unit-symbols"
 msgid "centimeter,centimeters,cm,cms"
 msgstr "centimeter,centimeters,cm,cms"
 
-#: ../src/unit.vala:54
+#: ../src/unit.vala:55
 msgid "Millimeters"
 msgstr "毫米"
 
-#: ../src/unit.vala:54
+#: ../src/unit.vala:55
 #, c-format
 msgctxt "unit-format"
 msgid "%s mm"
 msgstr "%s mm"
 
-#: ../src/unit.vala:54
+#: ../src/unit.vala:55
 msgctxt "unit-symbols"
 msgid "millimeter,millimeters,mm"
 msgstr "millimeter,millimeters,mm"
 
-#: ../src/unit.vala:55
+#: ../src/unit.vala:56
 msgid "Micrometers"
 msgstr "微米"
 
-#: ../src/unit.vala:55
+#: ../src/unit.vala:56
 #, c-format
 msgctxt "unit-format"
 msgid "%s μm"
 msgstr "%s μm"
 
-#: ../src/unit.vala:55
+#: ../src/unit.vala:56
 msgctxt "unit-symbols"
 msgid "micrometer,micrometers,um"
 msgstr "micrometer,micrometers,um"
 
-#: ../src/unit.vala:56
+#: ../src/unit.vala:57
 msgid "Nanometers"
 msgstr "纳米"
 
-#: ../src/unit.vala:56
+#: ../src/unit.vala:57
 #, c-format
 msgctxt "unit-format"
 msgid "%s nm"
 msgstr "%s nm"
 
-#: ../src/unit.vala:56
+#: ../src/unit.vala:57
 msgctxt "unit-symbols"
 msgid "nanometer,nanometers,nm"
 msgstr "nanometer,nanometers,nm"
 
-#: ../src/unit.vala:57
+#: ../src/unit.vala:58
 msgid "Hectares"
 msgstr "公顷"
 
-#: ../src/unit.vala:57
+#: ../src/unit.vala:58
 #, c-format
 msgctxt "unit-format"
 msgid "%s ha"
 msgstr "%s ha"
 
-#: ../src/unit.vala:57
+#: ../src/unit.vala:58
 msgctxt "unit-symbols"
 msgid "hectare,hectares,ha"
 msgstr "hectare,hectares,ha"
 
-#: ../src/unit.vala:58
+#: ../src/unit.vala:59
 msgid "Acres"
 msgstr "英亩"
 
-#: ../src/unit.vala:58
+#: ../src/unit.vala:59
 #, c-format
 msgctxt "unit-format"
 msgid "%s acres"
 msgstr "%s acres"
 
-#: ../src/unit.vala:58
+#: ../src/unit.vala:59
 msgctxt "unit-symbols"
 msgid "acre,acres"
 msgstr "acre,acres"
 
-#: ../src/unit.vala:59
+#: ../src/unit.vala:60
 msgid "Square Meters"
 msgstr "平方米"
 
-#: ../src/unit.vala:59
+#: ../src/unit.vala:60
 #, c-format
 msgctxt "unit-format"
 msgid "%s m²"
 msgstr "%s m²"
 
-#: ../src/unit.vala:59
+#: ../src/unit.vala:60
 msgctxt "unit-symbols"
 msgid "m²"
 msgstr "m²"
 
-#: ../src/unit.vala:60
+#: ../src/unit.vala:61
 msgid "Square Centimeters"
 msgstr "平方厘米"
 
-#: ../src/unit.vala:60
+#: ../src/unit.vala:61
 #, c-format
 msgctxt "unit-format"
 msgid "%s cm²"
 msgstr "%s cm²"
 
-#: ../src/unit.vala:60
+#: ../src/unit.vala:61
 msgctxt "unit-symbols"
 msgid "cm²"
 msgstr "cm²"
 
-#: ../src/unit.vala:61
+#: ../src/unit.vala:62
 msgid "Square Millimeters"
 msgstr "平方毫米"
 
-#: ../src/unit.vala:61
+#: ../src/unit.vala:62
 #, c-format
 msgctxt "unit-format"
 msgid "%s mm²"
 msgstr "%s mm²"
 
-#: ../src/unit.vala:61
+#: ../src/unit.vala:62
 msgctxt "unit-symbols"
 msgid "mm²"
 msgstr "mm²"
 
-#: ../src/unit.vala:62
+#: ../src/unit.vala:63
 msgid "Cubic Meters"
 msgstr "立方米"
 
-#: ../src/unit.vala:62
+#: ../src/unit.vala:63
 #, c-format
 msgctxt "unit-format"
 msgid "%s m³"
 msgstr "%s m³"
 
-#: ../src/unit.vala:62
+#: ../src/unit.vala:63
 msgctxt "unit-symbols"
 msgid "m³"
 msgstr "m³"
 
-#: ../src/unit.vala:63
+#: ../src/unit.vala:64
 msgid "Gallons"
 msgstr "åŠ ä»‘"
 
-#: ../src/unit.vala:63
+#: ../src/unit.vala:64
 #, c-format
 msgctxt "unit-format"
 msgid "%s gal"
 msgstr "%s gal"
 
-#: ../src/unit.vala:63
+#: ../src/unit.vala:64
 msgctxt "unit-symbols"
 msgid "gallon,gallons,gal"
 msgstr "gallon,gallons,gal"
 
-#: ../src/unit.vala:64
+#: ../src/unit.vala:65
 msgid "Liters"
 msgstr "公升"
 
-#: ../src/unit.vala:64
+#: ../src/unit.vala:65
 #, c-format
 msgctxt "unit-format"
 msgid "%s L"
 msgstr "%s L"
 
-#: ../src/unit.vala:64
+#: ../src/unit.vala:65
 msgctxt "unit-symbols"
 msgid "litre,litres,liter,liters,L"
 msgstr "litre,litres,liter,liters,L"
 
-#: ../src/unit.vala:65
+#: ../src/unit.vala:66
 msgid "Quarts"
 msgstr "夸脱"
 
-#: ../src/unit.vala:65
+#: ../src/unit.vala:66
 #, c-format
 msgctxt "unit-format"
 msgid "%s qt"
 msgstr "%s qt"
 
-#: ../src/unit.vala:65
+#: ../src/unit.vala:66
 msgctxt "unit-symbols"
 msgid "quart,quarts,qt"
 msgstr "quart,quarts,qt"
 
-#: ../src/unit.vala:66
+#: ../src/unit.vala:67
 msgid "Pints"
 msgstr "品脱"
 
-#: ../src/unit.vala:66
+#: ../src/unit.vala:67
 #, c-format
 msgctxt "unit-format"
 msgid "%s pt"
 msgstr "%s pt"
 
-#: ../src/unit.vala:66
+#: ../src/unit.vala:67
 msgctxt "unit-symbols"
 msgid "pint,pints,pt"
 msgstr "pint,pints,pt"
 
-#: ../src/unit.vala:67
+#: ../src/unit.vala:68
 msgid "Milliliters"
 msgstr "毫升"
 
-#: ../src/unit.vala:67
+#: ../src/unit.vala:68
 #, c-format
 msgctxt "unit-format"
 msgid "%s mL"
 msgstr "%s mL"
 
-#: ../src/unit.vala:67
+#: ../src/unit.vala:68
 msgctxt "unit-symbols"
 msgid "millilitre,millilitres,milliliter,milliliters,mL,cm³"
 msgstr "millilitre,millilitres,milliliter,milliliters,mL,cm³"
 
-#: ../src/unit.vala:68
+#: ../src/unit.vala:69
 msgid "Microliters"
 msgstr "微升"
 
-#: ../src/unit.vala:68
+#: ../src/unit.vala:69
 #, c-format
 msgctxt "unit-format"
 msgid "%s μL"
 msgstr "%s μL"
 
-#: ../src/unit.vala:68
+#: ../src/unit.vala:69
 msgctxt "unit-symbols"
 msgid "mm³,μL,uL"
 msgstr "mm³,μL,uL"
 
-#: ../src/unit.vala:69
+#: ../src/unit.vala:70
 msgid "Tonnes"
 msgstr "吨"
 
-#: ../src/unit.vala:69
+#: ../src/unit.vala:70
 #, c-format
 msgctxt "unit-format"
 msgid "%s T"
 msgstr "%s T"
 
-#: ../src/unit.vala:69
+#: ../src/unit.vala:70
 msgctxt "unit-symbols"
 msgid "tonne,tonnes"
 msgstr "tonne,tonnes"
 
-#: ../src/unit.vala:70
+#: ../src/unit.vala:71
 msgid "Kilograms"
 msgstr "千克"
 
-#: ../src/unit.vala:70
+#: ../src/unit.vala:71
 #, c-format
 msgctxt "unit-format"
 msgid "%s kg"
 msgstr "%s kg"
 
-#: ../src/unit.vala:70
+#: ../src/unit.vala:71
 msgctxt "unit-symbols"
 msgid "kilogram,kilograms,kilogramme,kilogrammes,kg,kgs"
 msgstr "kilogram,kilograms,kilogramme,kilogrammes,kg,kgs"
 
-#: ../src/unit.vala:71
+#: ../src/unit.vala:72
 msgid "Pounds"
 msgstr "磅"
 
-#: ../src/unit.vala:71
+#: ../src/unit.vala:72
 #, c-format
 msgctxt "unit-format"
 msgid "%s lb"
 msgstr "%s lb"
 
-#: ../src/unit.vala:71
+#: ../src/unit.vala:72
 msgctxt "unit-symbols"
 msgid "pound,pounds,lb"
 msgstr "pound,pounds,lb"
 
-#: ../src/unit.vala:72
+#: ../src/unit.vala:73
 msgid "Ounces"
 msgstr "盎司"
 
-#: ../src/unit.vala:72
+#: ../src/unit.vala:73
 #, c-format
 msgctxt "unit-format"
 msgid "%s oz"
 msgstr "%s oz"
 
-#: ../src/unit.vala:72
+#: ../src/unit.vala:73
 msgctxt "unit-symbols"
 msgid "ounce,ounces,oz"
 msgstr "ounce,ounces,oz"
 
-#: ../src/unit.vala:73
+#: ../src/unit.vala:74
 msgid "Grams"
 msgstr "å…‹"
 
-#: ../src/unit.vala:73
+#: ../src/unit.vala:74
 #, c-format
 msgctxt "unit-format"
 msgid "%s g"
 msgstr "%s g"
 
-#: ../src/unit.vala:73
+#: ../src/unit.vala:74
 msgctxt "unit-symbols"
 msgid "gram,grams,gramme,grammes,g"
 msgstr "gram,grams,gramme,grammes,g"
 
-#: ../src/unit.vala:74
+#: ../src/unit.vala:75
 msgid "Years"
 msgstr "å¹´"
 
-#: ../src/unit.vala:74
+#: ../src/unit.vala:75
 #, c-format
 msgctxt "unit-format"
 msgid "%s years"
 msgstr "%s years"
 
-#: ../src/unit.vala:74
+#: ../src/unit.vala:75
 msgctxt "unit-symbols"
 msgid "year,years"
 msgstr "year,years"
 
-#: ../src/unit.vala:75
+#: ../src/unit.vala:76
 msgid "Days"
 msgstr "天"
 
-#: ../src/unit.vala:75
+#: ../src/unit.vala:76
 #, c-format
 msgctxt "unit-format"
 msgid "%s days"
 msgstr "%s days"
 
-#: ../src/unit.vala:75
+#: ../src/unit.vala:76
 msgctxt "unit-symbols"
 msgid "day,days"
 msgstr "day,days"
 
-#: ../src/unit.vala:76
+#: ../src/unit.vala:77
 msgid "Hours"
 msgstr "æ—¶"
 
-#: ../src/unit.vala:76
+#: ../src/unit.vala:77
 #, c-format
 msgctxt "unit-format"
 msgid "%s hours"
 msgstr "%s hours"
 
-#: ../src/unit.vala:76
+#: ../src/unit.vala:77
 msgctxt "unit-symbols"
 msgid "hour,hours"
 msgstr "hour,hours"
 
-#: ../src/unit.vala:77
+#: ../src/unit.vala:78
 msgid "Minutes"
 msgstr "分"
 
-#: ../src/unit.vala:77
+#: ../src/unit.vala:78
 #, c-format
 msgctxt "unit-format"
 msgid "%s minutes"
 msgstr "%s minutes"
 
-#: ../src/unit.vala:77
+#: ../src/unit.vala:78
 msgctxt "unit-symbols"
 msgid "minute,minutes"
 msgstr "minute,minutes"
 
-#: ../src/unit.vala:78
+#: ../src/unit.vala:79
 msgid "Seconds"
 msgstr "秒"
 
-#: ../src/unit.vala:78
+#: ../src/unit.vala:79
 #, c-format
 msgctxt "unit-format"
 msgid "%s s"
 msgstr "%s s"
 
-#: ../src/unit.vala:78
+#: ../src/unit.vala:79
 msgctxt "unit-symbols"
 msgid "second,seconds,s"
 msgstr "second,seconds,s"
 
-#: ../src/unit.vala:79
+#: ../src/unit.vala:80
 msgid "Milliseconds"
 msgstr "毫秒"
 
-#: ../src/unit.vala:79
+#: ../src/unit.vala:80
 #, c-format
 msgctxt "unit-format"
 msgid "%s ms"
 msgstr "%s ms"
 
-#: ../src/unit.vala:79
+#: ../src/unit.vala:80
 msgctxt "unit-symbols"
 msgid "millisecond,milliseconds,ms"
 msgstr "millisecond,milliseconds,ms"
 
-#: ../src/unit.vala:80
+#: ../src/unit.vala:81
 msgid "Microseconds"
 msgstr "微秒"
 
-#: ../src/unit.vala:80
+#: ../src/unit.vala:81
 #, c-format
 msgctxt "unit-format"
 msgid "%s μs"
 msgstr "%s μs"
 
-#: ../src/unit.vala:80
+#: ../src/unit.vala:81
 msgctxt "unit-symbols"
 msgid "microsecond,microseconds,us,μs"
 msgstr "microsecond,microseconds,us,μs"
 
-#: ../src/unit.vala:81
+#: ../src/unit.vala:82
 msgid "Celsius"
 msgstr "摄氏度"
 
-#: ../src/unit.vala:81
+#: ../src/unit.vala:82
 #, c-format
 msgctxt "unit-format"
 msgid "%s ËšC"
 msgstr "%s ËšC"
 
-#: ../src/unit.vala:81
+#: ../src/unit.vala:82
 msgctxt "unit-symbols"
 msgid "degC,ËšC"
 msgstr "degC,ËšC"
 
 # should be Fahrenheit?
-#: ../src/unit.vala:82
+#: ../src/unit.vala:83
 msgid "Fahrenheit"
 msgstr "华氏度"
 
-#: ../src/unit.vala:82
+#: ../src/unit.vala:83
 #, c-format
 msgctxt "unit-format"
 msgid "%s ËšF"
 msgstr "%s ËšF"
 
-#: ../src/unit.vala:82
+#: ../src/unit.vala:83
 msgctxt "unit-symbols"
 msgid "degF,ËšF"
 msgstr "degF,ËšF"
 
-#: ../src/unit.vala:83
+#: ../src/unit.vala:84
 msgid "Kelvin"
 msgstr "开尔文"
 
-#: ../src/unit.vala:83
+#: ../src/unit.vala:84
 #, c-format
 msgctxt "unit-format"
 msgid "%s K"
 msgstr "%s K"
 
-#: ../src/unit.vala:83
+#: ../src/unit.vala:84
 msgctxt "unit-symbols"
 msgid "K"
 msgstr "K"
 
-#: ../src/unit.vala:84
+#: ../src/unit.vala:85
 msgid "Rankine"
 msgstr "兰金"
 
-#: ../src/unit.vala:84
+#: ../src/unit.vala:85
 #, c-format
 msgctxt "unit-format"
 msgid "%s ËšR"
 msgstr "%s ËšR"
 
-#: ../src/unit.vala:84
+#: ../src/unit.vala:85
 msgctxt "unit-symbols"
 msgid "degR,ËšR,ËšRa"
 msgstr "degR,ËšR,ËšRa"
 
-#: ../src/unit.vala:86
+#. We use IEC prefix for digital storage units. i.e. 1 kB = 1 KiloByte = 1000 bytes, and 1 KiB = 1 kibiByte 
= 1024 bytes
+#: ../src/unit.vala:87
+msgid "Bits"
+msgstr "位"
+
+#: ../src/unit.vala:87
+#, c-format
+msgctxt "unit-format"
+msgid "%s b"
+msgstr "%s b"
+
+#: ../src/unit.vala:87
+msgctxt "unit-symbols"
+msgid "bit,bits,b"
+msgstr "位,位,b"
+
+#: ../src/unit.vala:88
+msgid "Bytes"
+msgstr "字节"
+
+#: ../src/unit.vala:88
+#, c-format
+msgctxt "unit-format"
+msgid "%s B"
+msgstr "%s B"
+
+#: ../src/unit.vala:88
+msgctxt "unit-symbols"
+msgid "byte,bytes,B"
+msgstr "字节,字节,字节,B"
+
+#: ../src/unit.vala:89
+msgid "Nibbles"
+msgstr "Nibbles"
+
+#: ../src/unit.vala:89
+#, c-format
+msgctxt "unit-format"
+msgid "%s nibble"
+msgstr "%s nibble"
+
+#: ../src/unit.vala:89
+msgctxt "unit-symbols"
+msgid "nibble,nibbles"
+msgstr "nibble,nibbles"
+
+#. The SI symbol for kilo is k, however we also allow "KB" and "Kb", as they are widely used and accepted.
+#: ../src/unit.vala:91
+msgid "Kilobits"
+msgstr "千位"
+
+#: ../src/unit.vala:91
+#, c-format
+msgctxt "unit-format"
+msgid "%s kb"
+msgstr "%s kb"
+
+#: ../src/unit.vala:91
+msgctxt "unit-symbols"
+msgid "kilobit,kilobits,kb,Kb"
+msgstr "千位,千位,kb,Kb"
+
+#: ../src/unit.vala:92
+msgid "Kilobytes"
+msgstr "千字节"
+
+#: ../src/unit.vala:92
+#, c-format
+msgctxt "unit-format"
+msgid "%s kB"
+msgstr "%s kB"
+
+#: ../src/unit.vala:92
+msgctxt "unit-symbols"
+msgid "kilobyte,kilobytes,kB,KB"
+msgstr "千字节,千字节,kB,KB"
+
+#: ../src/unit.vala:93
+msgid "Kibibits"
+msgstr "Kibibits"
+
+#: ../src/unit.vala:93
+#, c-format
+msgctxt "unit-format"
+msgid "%s Kib"
+msgstr "%s Kib"
+
+#: ../src/unit.vala:93
+msgctxt "unit-symbols"
+msgid "kibibit,kibibits,Kib"
+msgstr "kibibit,kibibits,Kib"
+
+#: ../src/unit.vala:94
+msgid "Kibibytes"
+msgstr "Kibibytes"
+
+#: ../src/unit.vala:94
+#, c-format
+msgctxt "unit-format"
+msgid "%s KiB"
+msgstr "%s KiB"
+
+#: ../src/unit.vala:94
+msgctxt "unit-symbols"
+msgid "kibibyte,kibibytes,KiB"
+msgstr "kibibyte,kibibytes,KiB"
+
+#: ../src/unit.vala:95
+msgid "Megabits"
+msgstr "兆位"
+
+#: ../src/unit.vala:95
+#, c-format
+msgctxt "unit-format"
+msgid "%s Mb"
+msgstr "%s Mb"
+
+#: ../src/unit.vala:95
+msgctxt "unit-symbols"
+msgid "megabit,megabits,Mb"
+msgstr "兆位,兆位,Mb"
+
+#: ../src/unit.vala:96
+msgid "Megabytes"
+msgstr "兆字节"
+
+#: ../src/unit.vala:96
+#, c-format
+msgctxt "unit-format"
+msgid "%s MB"
+msgstr "%s MB"
+
+#: ../src/unit.vala:96
+msgctxt "unit-symbols"
+msgid "megabyte,megabytes,MB"
+msgstr "兆字节,兆字节,MB"
+
+#: ../src/unit.vala:97
+msgid "Mebibits"
+msgstr "Mebibits"
+
+#: ../src/unit.vala:97
+#, c-format
+msgctxt "unit-format"
+msgid "%s Mib"
+msgstr "%s Mib"
+
+#: ../src/unit.vala:97
+msgctxt "unit-symbols"
+msgid "mebibit,mebibits,Mib"
+msgstr "mebibit,mebibits,Mib"
+
+#: ../src/unit.vala:98
+msgid "Mebibytes"
+msgstr "Mebibytes"
+
+#: ../src/unit.vala:98
+#, c-format
+msgctxt "unit-format"
+msgid "%s MiB"
+msgstr "%s MiB"
+
+#: ../src/unit.vala:98
+msgctxt "unit-symbols"
+msgid "mebibyte,mebibytes,MiB"
+msgstr "mebibyte,mebibytes,MiB"
+
+#: ../src/unit.vala:99
+msgid "Gigabits"
+msgstr "吉位"
+
+#: ../src/unit.vala:99
+#, c-format
+msgctxt "unit-format"
+msgid "%s Gb"
+msgstr "%s Gb"
+
+#: ../src/unit.vala:99
+msgctxt "unit-symbols"
+msgid "gigabit,gigabits,Gb"
+msgstr "吉位,吉位,Gb"
+
+#: ../src/unit.vala:100
+msgid "Gigabytes"
+msgstr "吉字节"
+
+#: ../src/unit.vala:100
+#, c-format
+msgctxt "unit-format"
+msgid "%s GB"
+msgstr "%s GB"
+
+#: ../src/unit.vala:100
+msgctxt "unit-symbols"
+msgid "gigabyte,gigabytes,GB"
+msgstr "吉字节,吉字节,GB"
+
+#: ../src/unit.vala:101
+msgid "Gibibits"
+msgstr "Gibibits"
+
+#: ../src/unit.vala:101
+#, c-format
+msgctxt "unit-format"
+msgid "%s Gib"
+msgstr "%s Gib"
+
+#: ../src/unit.vala:101
+msgctxt "unit-symbols"
+msgid "gibibit,gibibits,Gib"
+msgstr "gibibit,gibibits,Gib"
+
+#: ../src/unit.vala:102
+msgid "Gibibytes"
+msgstr "Gibibytes"
+
+#: ../src/unit.vala:102
+#, c-format
+msgctxt "unit-format"
+msgid "%s GiB"
+msgstr "%s GiB"
+
+#: ../src/unit.vala:102
+msgctxt "unit-symbols"
+msgid "gibibyte,gibibytes,GiB"
+msgstr "gibibyte,gibibytes,GiB"
+
+#: ../src/unit.vala:103
+msgid "Terabits"
+msgstr "太位"
+
+#: ../src/unit.vala:103
+#, c-format
+msgctxt "unit-format"
+msgid "%s Tb"
+msgstr "%s Tb"
+
+#: ../src/unit.vala:103
+msgctxt "unit-symbols"
+msgid "terabit,terabits,Tb"
+msgstr "太位,太位,Tb"
+
+#: ../src/unit.vala:104
+msgid "Terabytes"
+msgstr "太字节"
+
+#: ../src/unit.vala:104
+#, c-format
+msgctxt "unit-format"
+msgid "%s TB"
+msgstr "%s TB"
+
+#: ../src/unit.vala:104
+msgctxt "unit-symbols"
+msgid "terabyte,terabytes,TB"
+msgstr "太字节,太字节,TB"
+
+#: ../src/unit.vala:105
+msgid "Tebibits"
+msgstr "Tebibits"
+
+#: ../src/unit.vala:105
+#, c-format
+msgctxt "unit-format"
+msgid "%s Tib"
+msgstr "%s Tib"
+
+#: ../src/unit.vala:105
+msgctxt "unit-symbols"
+msgid "tebibit,tebibits,Tib"
+msgstr "tebibit,tebibits,Tib"
+
+#: ../src/unit.vala:106
+msgid "Tebibytes"
+msgstr "Tebibytes"
+
+#: ../src/unit.vala:106
+#, c-format
+msgctxt "unit-format"
+msgid "%s TiB"
+msgstr "%s TiB"
+
+#: ../src/unit.vala:106
+msgctxt "unit-symbols"
+msgid "tebibyte,tebibytes,TiB"
+msgstr "tebibyte,tebibytes,TiB"
+
+#: ../src/unit.vala:107
+msgid "Petabits"
+msgstr "拍位"
+
+#: ../src/unit.vala:107
+#, c-format
+msgctxt "unit-format"
+msgid "%s Pb"
+msgstr "%s Pb"
+
+#: ../src/unit.vala:107
+msgctxt "unit-symbols"
+msgid "petabit,petabits,Pb"
+msgstr "拍位,拍位,Pb"
+
+#: ../src/unit.vala:108
+msgid "Petabytes"
+msgstr "拍字节"
+
+#: ../src/unit.vala:108
+#, c-format
+msgctxt "unit-format"
+msgid "%s PB"
+msgstr "%s PB"
+
+#: ../src/unit.vala:108
+msgctxt "unit-symbols"
+msgid "petabyte,petabytes,PB"
+msgstr "拍字节,拍字节,PB"
+
+#: ../src/unit.vala:109
+msgid "Pebibits"
+msgstr "Pebibits"
+
+#: ../src/unit.vala:109
+#, c-format
+msgctxt "unit-format"
+msgid "%s Pib"
+msgstr "%s Pib"
+
+#: ../src/unit.vala:109
+msgctxt "unit-symbols"
+msgid "pebibit,pebibits,Pib"
+msgstr "pebibit,pebibits,Pib"
+
+#: ../src/unit.vala:110
+msgid "Pebibytes"
+msgstr "Pebibytes"
+
+#: ../src/unit.vala:110
+#, c-format
+msgctxt "unit-format"
+msgid "%s PiB"
+msgstr "%s PiB"
+
+#: ../src/unit.vala:110
+msgctxt "unit-symbols"
+msgid "pebibyte,pebibytes,PiB"
+msgstr "pebibyte,pebibytes,PiB"
+
+#: ../src/unit.vala:111
+msgid "Exabits"
+msgstr "艾位"
+
+#: ../src/unit.vala:111 ../src/unit.vala:115
+#, c-format
+msgctxt "unit-format"
+msgid "%s Eb"
+msgstr "%s Eb"
+
+#: ../src/unit.vala:111
+msgctxt "unit-symbols"
+msgid "exabit,exabits,Eb"
+msgstr "艾位,艾位,Eb"
+
+#: ../src/unit.vala:112
+msgid "Exabytes"
+msgstr "艾字节"
+
+#: ../src/unit.vala:112 ../src/unit.vala:116
+#, c-format
+msgctxt "unit-format"
+msgid "%s EB"
+msgstr "%s EB"
+
+#: ../src/unit.vala:112
+msgctxt "unit-symbols"
+msgid "exabyte,exabytes,EB"
+msgstr "艾字节,艾字节,EB"
+
+#: ../src/unit.vala:113
+msgid "Exbibits"
+msgstr "Exbibits"
+
+#: ../src/unit.vala:113
+#, c-format
+msgctxt "unit-format"
+msgid "%s Eib"
+msgstr "%s Eib"
+
+#: ../src/unit.vala:113
+msgctxt "unit-symbols"
+msgid "exbibit,exbibits,Eib"
+msgstr "exbibit,exbibits,Eib"
+
+#: ../src/unit.vala:114
+msgid "Exbibytes"
+msgstr "Exbibytes"
+
+#: ../src/unit.vala:114
+#, c-format
+msgctxt "unit-format"
+msgid "%s EiB"
+msgstr "%s EiB"
+
+#: ../src/unit.vala:114
+msgctxt "unit-symbols"
+msgid "exbibyte,exbibytes,EiB"
+msgstr "exbibyte,exbibytes,EiB"
+
+#: ../src/unit.vala:115
+msgid "Zettabits"
+msgstr "泽位"
+
+#: ../src/unit.vala:115
+msgctxt "unit-symbols"
+msgid "zettabit,zettabits,Zb"
+msgstr "泽位,泽位,Zb"
+
+#: ../src/unit.vala:116
+msgid "Zettabytes"
+msgstr "泽字节"
+
+#: ../src/unit.vala:116
+msgctxt "unit-symbols"
+msgid "zettabyte,zettabytes,ZB"
+msgstr "泽字节,泽字节,ZB"
+
+#: ../src/unit.vala:117
+msgid "Zebibits"
+msgstr "Zebibits"
+
+#: ../src/unit.vala:117
+#, c-format
+msgctxt "unit-format"
+msgid "%s Zib"
+msgstr "%s Zib"
+
+#: ../src/unit.vala:117
+msgctxt "unit-symbols"
+msgid "zebibit,zebibits,Zib"
+msgstr "zebibit,zebibits,Zib"
+
+#: ../src/unit.vala:118
+msgid "Zebibytes"
+msgstr "Zebibytes"
+
+#: ../src/unit.vala:118
+#, c-format
+msgctxt "unit-format"
+msgid "%s ZiB"
+msgstr "%s ZiB"
+
+#: ../src/unit.vala:118
+msgctxt "unit-symbols"
+msgid "zebibyte,zebibytes,ZiB"
+msgstr "zebibyte,zebibytes,ZiB"
+
+#: ../src/unit.vala:119
+msgid "Yottabits"
+msgstr "尧位"
+
+#: ../src/unit.vala:119
+#, c-format
+msgctxt "unit-format"
+msgid "%s Yb"
+msgstr "%s Yb"
+
+#: ../src/unit.vala:119
+msgctxt "unit-symbols"
+msgid "yottabit,yottabits,Yb"
+msgstr "尧位,尧位,Yb"
+
+#: ../src/unit.vala:120
+msgid "Yottabytes"
+msgstr "尧字节"
+
+#: ../src/unit.vala:120
+#, c-format
+msgctxt "unit-format"
+msgid "%s YB"
+msgstr "%s YB"
+
+#: ../src/unit.vala:120
+msgctxt "unit-symbols"
+msgid "yottabyte,yottabytes,YB"
+msgstr "尧字节,尧字节,YB"
+
+#: ../src/unit.vala:121
+msgid "Yobibits"
+msgstr "Yobibits"
+
+#: ../src/unit.vala:121
+#, c-format
+msgctxt "unit-format"
+msgid "%s Yib"
+msgstr "%s Yib"
+
+#: ../src/unit.vala:121
+msgctxt "unit-symbols"
+msgid "yobibit,yobibits,Yib"
+msgstr "yobibit,yobibits,Yib"
+
+#: ../src/unit.vala:122
+msgid "Yobibytes"
+msgstr "Yobibytes"
+
+#: ../src/unit.vala:122
+#, c-format
+msgctxt "unit-format"
+msgid "%s YiB"
+msgstr "%s YiB"
+
+#: ../src/unit.vala:122
+msgctxt "unit-symbols"
+msgid "yobibyte,yobibytes,YiB"
+msgstr "yobibyte,yobibytes,YiB"
+
+#: ../src/unit.vala:124
 msgid "Currency"
 msgstr "货币"
 
 #. Translators: result of currency conversion, %s is the symbol, %%s is the placeholder for amount, i.e.: 
USD100
-#: ../src/unit.vala:92
+#: ../src/unit.vala:130
 #, c-format
 msgid "%s%%s"
 msgstr "%s%%s"
 
+#~ msgid "Latvian Lats"
+#~ msgstr "拉脱维亚拉特"
+
+#~ msgid "Truncate"
+#~ msgstr "截断"
+
+#~ msgid "Malformed expression at token '%s'"
+#~ msgstr "“%sâ€é™„è¿‘è¡¨è¾¾å¼æ ¼å¼é”™è¯¯"
+
+#~ msgid "_Close"
+#~ msgstr "关闭(_C)"
+
+#~ msgid "Root must be non-zero"
+#~ msgstr "æ ¹æ¬¡æ–¹æ•°å¿…éœ€ä¸ºéžé›¶å€¼"
+
+#~ msgid "Negative root of zero is undefined"
+#~ msgstr "é›¶çš„è´Ÿæ•°æ¬¡æ–¹æ ¹æ— æ„ä¹‰"
+
+#~ msgid "nth root of negative number is undefined for even n"
+#~ msgstr "å¯¹è´Ÿæ•°æ±‚å¶æ¬¡æ–¹æ ¹æ— æ„ä¹‰"
+
+#~ msgid "Overflow: the result couldn't be calculated"
+#~ msgstr "æº¢å‡ºï¼šè¯¥ç»“æžœæ— æ³•è®¡ç®—"
+
 #~ msgid "Mode"
 #~ msgstr "模式"