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摄氏度的英文怎么读

发表时间:2023-03-28 21:39:09  来源:资讯  浏览:次   【】【】【
      今天James老师给大家讲解一下AbbreviationandpronunciationofunitsPTEDI中单位的简称以及发音的总结哦~      在世界上的单位系统中,主流的单位系统有两种,一种是Metricsyst.

      今天James老师给大家讲解一下AbbreviationandpronunciationofunitsPTEDI中单位的简称以及发音的总结哦~

      在世界上的单位系统中,主流的单位系统有两种,一种是Metricsystem(公制),另外一种是Imperialsystem(英制)。

      公制单位对我们来说比较熟悉,因为世界上大多数的国家都采用公制单位,它们都是十进制;

      目前官方仍旧采用英制单位作为官方单位系统的国家只有三个:美国,利比里亚和缅甸。另外,英国是一个官方已推行公制但是民间仍旧使用英制的国家。

      在我们描述DI中的图表的时候,或多或少会遇到这些来自这两个单位系统的单位的简写,这就需要我们最好充足的准备去了解他们的读音。

      以下就是常见单位的简写和它们对应的全称。

      Length-长度单位

      Metricsystem公制

      基准单位:meter(Am.E)/metre(Br.E)米

      mm-millimeter毫米

      cm-centimeter厘米

      dm-decimeter分米

      km-kilometer千米

      Imperialsystem英制(从小到大排列)

      in.inchinches英寸

      ft.footfeet英尺

      yd.yardyards码

      mi.milemiles英里

      英制长度单位和公制长度单位的换算公式为:

      1in.=0.0254m

      1ft.=12in.=0.3048m

      1yd.=3ft.=36in.=0.9144m

      1mi.=1760yd.=1.61km

      Area-面积单位

      对于面积单位,首先我们能想到的就是平方米,平方千米。这是一个最简单的表达方式,而且适用于基础的英制长度单位到面积单位的转化,只需要在前面加一个square即可,转化如下:

      m2-squaremeter平方米

      in.2-squareinch平方英寸

      ft.2-squarefoot/feet平方英尺

      另外还有两个可能会遇见的面积单位:

      ha.-hectare公顷

      ac.-Acre英亩

      其中公顷是公制单位,英亩是英制单位,它们的大小概念如下:

      1ha.=10,000m2

      1ac.=4046.86m2

      Volume-体积单位

      和面积单位相同,最简单的体积单位是立方米,立方千米,立方英寸这样的表达方式,全称如下:

      m3-cubicmeter立方米

      in3-cubicinch立方英寸

      另外在公制单位中,还有一个体积单位也非常常见,就是升,表达如下:

      L-liter/litre升

      mL-milliliter/millilitre毫升

      接下来的体积单位,都是英制单位系统的范畴,这些体积单位和我们的日常生活也有一些关联,我们可以了解一下它们的简写,全称以及读音。

      另外这些单位由于也被美国广泛使用,美国人还将这些单位代表的体积大小做了一定的修改,单词一样但是所代表的值会有出入。

      所以下面的所有单位都有两个版本,一个是英国版本(Britishimperialsystem)一个是美国版本(UnitedStatescustomaryunits)

      tsp.teaspoon茶匙

      tbsp.tablespoon餐匙

      pt.pint品脱

      qt.quart夸脱

      gal.gallon加仑

      接下来的换算,以UnitedStatescustomaryunits为基准。

      1tsp.=4.93mL

      1tbsp.=3tsp.=14.79mL

      1pt.=32tbsp.=473.2mL

      1qt.=2pt.=0.95L

      1gal.=4qt.=8pt.=3.79L

      Mass-质量单位

      Metricsystem公制

      基准单位gram(Am.E)/gramme(Br.E)

      mg-milligrammilligrams毫克

      kg-kilogramkilograms千克

      t-ton/tonnetons/tonnes吨

      Imperialsystem英制(从小到大排列)

      oz.-ounceounces盎司

      lb.-poundpounds磅

      st.-stonestones石

      其中磅(pound)的简写lb.形式上和pound这个单词完全不一样,其实lb.指代的单词是libra,是拉丁文天平的意思,我们说的天秤座其实也是libra。

      英制质量单位和公制质量单位的换算如下:

      1oz.=0.028kg

      1lb.=16oz.=0.45kg

      1st.=14lb.=224oz.=6.35kg

      Temperature-温度单位

      温度仅三种单位,摄氏度,华氏度和开尔文,大家必须了解它们的发音。

      °C-degreeCelsius摄氏度

      °F-degreeFahrenheit华氏度

      K-kelvin开尔文

      从摄氏度换算到开尔文有一个公式:

      °F=°C×9/5+32

      举几个例子:

      0°C=32°F

      20°C=68°F

      -20°C=-4°F

      接下来就是我们在DI中出现过的一些特殊单位的总结,也需要我们去准备,会读!

      Btu.Britishthermalunit英国热量单位

      W-watt瓦特

      Wh-Watthour瓦时

      kWh-kilowatthour千瓦时

      MWh-million-watthour兆瓦时

      /-per

      有什么问题可以私信我,满酷是你过关PTE的最好帮手,超级管家!

摄氏度的英文怎么读
       【满酷PTE技巧】PTE口语考试,℃,℉,lb.,这些口语常考单位你们都会念吗?所有单位读法大解析

常见数学符号以及拼写

      数学符号的读法
      α( 阿而法)
      β( 贝塔)
      γ(伽马)
      δ(德尔塔)
      ε(艾普西龙)
      ζ(截塔)
      η(艾塔) θ(西塔) ι约塔) κ(卡帕)
      λ(兰姆达) μ(米尤) ν(纽) ξ(可系) ο(奥密克戎)
      π (派)ρ (若)σ (西格马)τ (套)υ (英文或拉丁字母)
      φ(斐) χ(喜) ψ(普西)) ω(欧米伽)
      更全面:
      1 Α α alpha a:lf 阿尔法 角度;系数
      2 Β β beta bet 贝塔 磁通系数;角度;系数
      3 Γ γ gamma ga:m 伽马 电导系数(小写)
      4 Δ δ delta delt 德尔塔 变动;密度;屈光度
      5 Ε ε epsilon ep`silon 伊普西龙 对数之基数
      6 Ζ ζ zeta zat 截塔 系数;方位角;阻抗;相对粘度;原子序数
      7 Η η eta eit 艾塔 磁滞系数;效率(小写)
      8 Θ θ thet θit 西塔 温度;相位角
      9 Ι ι iot aiot 约塔 微小,一点儿
      10 Κ κ kappa kap 卡帕 介质常数
      11 ∧ λ lambda lambd 兰布达波长(小写);体积
      12 Μ μ mu mju 缪 磁导系数;微(千分之一);放大因数(小写)
      13 Ν ν nu nju 纽 磁阻系数
      14 Ξ ξ xi ksi 克西
      15 Ο ο omicron omik`ron 奥密克戎
      16 ∏ π pi pai 派 圆周率=圆周÷直径=3.1416
      17 Ρ ρ rho rou 肉 电阻系数(小写)
      18 ∑ σ sigma `sigma 西格马 总和(大写),表面密度;跨导(小写)
      19 Τ τ tau tau 套 时间常数
      20 Υ υ upsilon jup`silon 宇普西龙 位移
      21 Φ φ phi fai 佛爱 磁通;角
      22 Χ χ chi phai 西
      23 Ψ ψ psi psai 普西 角速;介质电通量(静电力线);角
      24 Ω ω omega o`miga 欧米伽 欧姆(大写);角速(小写);角
      希腊字母读法
      Αα:阿尔法 Alpha
      Ββ:贝塔 Beta
      Γγ:伽玛 Gamma
      Δδ:德尔塔 Delte
      Εε:艾普西龙 Epsilon
      ζ :捷塔 Zeta
      Ζη:依塔 Eta
      Θθ:西塔 Theta
      Ιι:艾欧塔 Iota
      Κκ:喀帕 Kappa
      ∧λ:拉姆达 Lambda
      Μμ:缪 Mu
      Νν:拗 Nu
      Ξξ:克西 Xi
      Οο:欧麦克轮 Omicron
      ∏π:派 Pi
      Ρρ:柔 Rho
      ∑σ:西格玛 Sigma
      Ττ:套 Tau
      Υυ:宇普西龙 Upsilon
      Φφ:fai Phi
      Χχ:器 Chi
      Ψψ:普赛 Psi
      Ωω:欧米伽 Omega
      希腊字母怎么打
      打开Office文档之后,在你需要输入希腊字母的时候,先将输入法切换为英文状态,然后同时按下三个键Ctrl+Shift+Q ,工具栏上的"字体"就会发生变化此刻,你再对照下表输入a,b,c……即可得到您想要的希腊字母。注意,大小写状态时所代表的希腊字母也会有大小写区分的哦!
      —dash 破折号
      ' 'single quotation marks 单引号
      " "double quotation marks 双引号
      ( )parentheses 圆括号
      [ ]square brackets 方括号
      《 》French quotes 法文引号;书名号
      ...ellipsis 省略号
      ¨tandem colon 双点号
      "ditto 同上
      ‖parallel 双线号
      /virgule 斜线号
      &ampersand = and
      ~swung dash 代字号
      §section; division 分节号
      →arrow 箭号;参见号
      +plus 加号;正号
      -minus 减号;负号
      ±plus or minus 正负号
      ×is multiplied by 乘号
      ÷is divided by 除号
      =is equal to 等于号
      ≠is not equal to 不等于号
      ≡is equivalent to 全等于号
      ≌is equal to or approximately equal to 等于或约等于号
      ≈is approximately equal to 约等于号
      <is less than 小于号
      >is more than 大于号
      ≮is not less than 不小于号
      ≯is not more than 不大于号
      ≤is less than or equal to 小于或等于号
      ≥is more than or equal to 大于或等于号
      %per cent 百分之…
      ‰per mill 千分之…
      ∞infinity 无限大号
      ∝varies as 与…成比例
      √(square) root 平方根
      ∵since; because 因为
      ∴hence 所以
      ∷equals, as (proportion) 等于,成比例
      ∠angle 角
      ⌒semicircle 半圆
      ⊙circle 圆
      ○circumference 圆周
      πpi 圆周率
      △triangle 三角形
      ⊥perpendicular to 垂直于
      ∪union of 并,合集
      ∩intersection of 交,通集
      ∫the integral of …的积分
      ∑(sigma) summation of 总和
      °degree 度
      ′minute 分
      〃second 秒
      #number …号
      ℃Celsius system 摄氏度
      @at 单价
      α( 阿而法)
      β( 贝塔)
      γ(伽马)
      δ(德尔塔)
      ε(艾普西龙)
      ζ(截塔)
      η(艾塔) θ(西塔) ι约塔) κ(卡帕)
      λ(兰姆达) μ(米尤) ν(纽) ξ(可系) ο(奥密克戎)
      π (派)ρ (若)σ (西格马)τ (套)υ (英文或拉丁字母)
      φ(斐) χ(喜) ψ(普西)) ω(欧米伽)
      各种符号的英文读法
      'exclam'='!'
      'at'='@'
      'numbersign'='#'
      'dollar'='$'
      'percent'='%'
      'caret'='^'
      'ampersand'='&'
      'asterisk'='*'
      'parenleft'='('
      'parenright'=')'
      'minus'='-'
      'underscore'='_'
      'equal'='='
      'plus'='+'
      'bracketleft'='['
      'braceleft'='{'
      'bracketright'=']'
      'braceright'='}'
      'semicolon'=';'
      'colon'=':'
      'quote'='''
      'doublequote'='"'
      'backquote'='''
      'tilde'='~'
      'backslash'=''
      'bar'='|'
      'comma'=','
      'less'='<'
      'period'='.'
      'greater'='>'
      'slash'='/'
      'question'='?'
      'space'=' '
      ~~~~~~~~~~~~~~~~~~~~~~
       ̄ hyphen 连字符
      ' apostrophe 省略号;所有格符号
      — dash 破折号
      ' 'single quotation marks 单引号
      " "double quotation marks 双引号
      ( ) parentheses 圆括号
      [ ] square brackets 方括号
      Angle bracket
      {} Brace
      《 》French quotes 法文引号;书名号
      ... ellipsis 省略号
      ¨ tandem colon 双点号
      " ditto 同上
      ‖ parallel 双线号
      / virgule 斜线号
      & ampersand = and
      ~ swung dash 代字号
      § section; division 分节号
      → arrow 箭号;参见号
      + plus 加号;正号
      - minus 减号;负号
      ± plus or minus 正负号
      × is multiplied by 乘号
      ÷ is divided by 除号
      = is equal to 等于号
      ≠ is not equal to 不等于号
      ≡ is equivalent to 全等于号
      ≌ is equal to or approximately equal to 等于或约等于号
      ≈ is approximately equal to 约等于号
      < is less than 小于号
      > is more than 大于号
      ≮ is not less than 不小于号
      ≯ is not more than 不大于号
      ≤ is less than or equal to 小于或等于号
      ≥ is more than or equal to 大于或等于号
      % per cent 百分之…
      ‰ per mill 千分之…
      ∞ infinity 无限大号
      ∝ varies as 与…成比例
      √ (square) root 平方根
      ∵ since; because 因为
      ∴ hence 所以
      ∷ equals, as (proportion) 等于,成比例
      ∠ angle 角
      ⌒ semicircle 半圆
      ⊙ circle 圆
      ○ circumference 圆周
      π pi 圆周率
      △ triangle 三角形
      ⊥ perpendicular to 垂直于
      ∪ union of 并,合集
      ∩ intersection of 交,通集
      ∫ the integral of …的积分
      ∑ (sigma) summation of 总和
      ° degree 度
      ′ minute 分
      〃 second 秒
      # number …号
      ℃ Celsius system 摄氏度
      @ at 单价
      x'是x prime(比如转置矩阵)
      x"是x double-prime
      常用英文数学式/符号的读法
      Pronunciation of Numerals 数词的读法
      ----------------------------------------------------------------------
      1.Cardinals and Ordinals 基数和序数
      (1)100以内的数词
      基数 序数
      Roman Arabic
      Numerals Numerals
      罗马数字 阿拉伯数字读法 数码 读法
      I 1 one 1st the first
      II 2 two 2nd the second
      III 3 three 3rd the third
      IV 4 four 4th the fourth
      V 5 five 5th the fifth
      VI 6 six 6th the sixth
      VII 7 seven 7th the seventh
      VIII 8 eight 8th the eighth
      IX 9 nine 9th the ninth
      X 10 ten 10th the tenth
      XI 11 eleven 11th the eleventh
      XII 12 twelve 12th the twelfth
      XIII 13 thirteen 13th the thirteenth
      XIV 14 fourteen 14th the fourteenth
      XV 15 fifteen 15th the fifteenth
      XVI 16 sixteen 16th the sixteenth
      XVII 17 seventeen 17th the seventeenth
      XVIII 18 eighteen 18th the eighteenth
      XIX 19 nineteen 19th the nineteenth
      XX 20 twenty 20th the twentieth
      XXI 21 twenty-one 21st the twenty-first
      XXV 25 twenty-five 25th the twenty-fifth
      XXX 30 thirty 30th the thirtieth
      XL 40 forty 40th the fortieth
      L 50 fifty 50th the fiftieth
      LX 60 sixty 60th the sixtieth
      LXX 70 seventy 70th the seventieth
      LXXX 80 eighty 80th the eightieth
      XC 90 ninety 90th the ninetieth
      IC 99 ninety-nine 99th the ninety-ninth
      C 100 one hundred 100th the hundredth
      CII 102 a hundred 102nd the (one) hundred
      and two and second
      246 two hundred and forty-six
      751 seven hundred and fifty-one
      (2)1000以上的数词
      1,000 = one thousand 一千
      10,000 = ten thousand 一万
      100,000 = one hundred thousand 十万
      1,000,000 = one million 一百万
      10,000,000 = ten million 一千万
      100,000,000=one hundred million 一亿
      (3)十亿以上的大数,英美有不同的读法:
      英国 美国
      十亿 one thousand million = one billion
      百亿 ten thousand million = ten billion
      千亿 one hundred thousand million = one hundred billion
      万亿 one billion = one trillion
      2.Fractions 分数
      通常将分子读为基数,将分母读为序数。
      1/2 = a (or one) half
      1/3 = a (or one) third
      1/4 = a quarter or one fouth
      1/5 = a (or one) fifth
      2/3 = two thirds
      9/10 = nine tenths
      53/4 = five and three quarters
      15/64= fifteen over (or by) sixty-four
      15% = fifteen per cent
      4‰ = four per mill
      3.Decimals 小数
      0.4 = zero (or nought) point four
      .01 = point (or decimal) nought one
      12.34 = twelve point three four
      567.809 = five hundred and sixty-seven point eight nought nine
      30.45 = thirty point four five, five recurring
      0.3% = decimal three percent
      4.Mathematic Forms 数学式
      (1) Addition 加法
      1+2=3 One and two are three.
      2+3=5 Two plus three equals five.
      4+0=4 Four and nought is equal to four.
      45+70+152=267 45,70 and 152 added are (or make) 267
      the sum (or total) is 267.
      演算时的读法: Three and seven are ten; I write(or I write down,or I put down)a nought
      and carry one. Four and one that I carry are five, and eight make thirteen,and three
      sixteen; I write down six and carry one. One and one (that I carry) are two; I put down
      two.- The sum (or total, or the result of the addition) is two hundred and sixty. 37,80
      and 143 added together, and(or make) 260.
      (2)Subtraction 减法
      9-4=5 Nine minus four equals (or is equal to) five.
      15-7=8 Seven from fifteen leaves eight.
      23,654-8,175=15,479 8,175 (take or subtracted) from 23,654 leaves 15,479. The difference
      (or The remainder) is 15,479.
      Nine from five won`t go.
      演算时的读法:Nought from nought (leaves) nought. One from one leaves nought (or nothing).
      Two from three (leaves) one. I can`t take (or subtract) five from four; I must borrow ten;
      five from fourteen leaves nine.- The difference (or The remainder) is nine thousand one
      hundred. 5210 (take or substracted) from 14,310 leaves 9,100.
      (3)Multiplication 乘法
      1×0=0 One multiplied by nought equals nought.
      1×1=1 Once one is one.
      2×1=2 Twice one is two.
      3×5=15 Three times five is fifteen
      6×0=0 Multiply six by nothing, and the result is nothing.
      演算时的读法: Five times nine (or Nine multiplied by five) are forty-five; I put down five
      and carry four. Five times seven are thirty-five and four (that I carry) are thirty-nine; I write
      down nine and carry three. Five times six make thirty and three (that I carry) thirty-three; I put
      down thirty-three.
      Eight times nine (or Eight nine) are seven two; I write two and carry seven. Eight sevens make
      fifty-six and seven are sixty-three. I put down three and carry six. Eight sixes make forty-eight
      and six fifty-four; I write down fifty-four.
      I now add the partial results (or products) Five. Two and nine are eleven. Three and three are
      six and one are seven. Four and three make seven. Five.
      (4)Division 除法
      9÷3=3 Nine divided by three maks (or is equal to) three.
      20÷5=4 Five into twenty goes four times.
      4567÷23=198余13 23 into 4567 goes 198 times, and 13 remainder.
      The quctient is 198, and 13 remainder.
      演算时的读法: Fifteen into thirteen won`t go ; fifteen into one hundred and thirty-eight goes nine
      times; nine times fifteen are one hundred and threty-five; one hundred and thirty-five from one hundred
      and thirty-eight leaves three; I bring down seven; fifteen into thirty-seven goes twice; twice fifteen
      are thirty; thirty from thirty-seven leaves seven.
      The (exact) quotient is ninety-two, and seven remainder; 15 into 1387 goes 92 times, and 7 remainder.
      5.Time 时间
      (1)Hours 钟点
      2h.5'8" = two hours five minutes eight seconds 2小时5分8秒
      6.18 = six eighteen 6时18分
      8.30 a.m.= eight thirty a.m.['ei 'em] 上午8时30分
      the 6.05 p.m.train = the six (nought) five p.m.['pi:'em] train 下午6时零5分列车
      又二十四小时混合制的写法和读法如下:
      0900 = 0 nine hunderd (上午)9时
      0910 = 0 nine ten (上午)9时10分
      1300 = thirteen hundred 13时(下午1时)
      1525 = fifteen twenty-five 15时25分(下午3时25分)
      2000 = twenty hundred 20时(下午8时)
      at 5 o'c =at five o'clock 五点钟
      (2)Date 日期
      Oct.1 =October first 10月1日
      Oct.1st = October the first 10月1日
      Ist Oct. 1949 = teh first of October, nineteen forty-nine 1949年10月1日
      3/5 = [英]May (the) third 5月3日;[美]March fifth 3月5日
      [附注]联系日期前置词用on.
      (3)Year 年份
      684 B.C. =Six eighty-four B.C. ['bi:'si:] 公元前684年
      1960 = nineteen sixty; nineteen hundred and sixty
      19- nineteen something
      1950's nineteen fifties 二十世纪五十年代
      [附注]联系年份的前置词用in.
      6.Numbers 号码
      (1)Telephones Numbers 电话号码
      1023 = one O two three; ten twenty-three
      1227 = one double two (or two two) seven
      0386 = O three eight six
      0096 = double O(or O O )nine six
      7000 = seven O double O = seven thousand
      No.26= Number 26 第26号
      Room 201 = Room two O one 第201房间
      10 Changan Street = Ten Changan Street 长安街10号
      (2)Writings 书籍作品
      Vol.I = Volume one (or the first volume) 卷一
      Chap.II= Chapter two (or the second chapter) 第2章
      Page 3 = page Three (or the third page) 第3页
      See pp.5-10 = See Pages five to ten 见第5-10页
      Act V = Act five (or the fifth act) 第5幕
      Hamlet III 1:56 = Hamlet Act Three, Secene One.Line fifty-six 《哈姆雷特》第3幕第一场第56行
      Matt.7:12 = Matthew, Chapter Seven, Verse Twelve 《马可福音》第七章第12节
      Beethoven Op.49 = Beethoven Opus forty-nine 贝多芬作品第49号
      4to = quarto 四本开 8vo = octavo 八本开
      (3)Other 其他
      World War I = World War One 第一次世界大战
      World War II = World War Two 第二次世界大战
      Charles I= Charles the First 查理一世
      Henry V = Henry the Fifth 亨利五世
      Mr.- = Mr. Dash; Mr. So-and-so 某某先生
      Mr.B - = Mr. B
      -Esq.,of -= the town of Blank Esquire of Blank University 某大学某某先生
      the town of = the town of Blank 某某城
      The result of the game was 3-0 比赛结果是三比零。
      7.Money 货币
      (1)British currency 英币
      6d. = six pence 六便士
      1/2d. = a halfpenny 半便士
      11/2d. = a peney halfpenny or three halfpeny or three halfpence一便士半
      1/4d. = a farthing 一个铜元
      33/4d.= three pence three farghings 三便士三铜元
      1s.6d.(or 1/6) = one (shilling) and six (pence) 一先令六便士
      £1.18 = (or£1.18s.)= one pound eighteen (shillings) 一镑十八先令
      £1.3s.6d. = one pound, three shillings (and) sixpence
      4/51/2(or4s.51/2d.) = four (shillings) and five pence halfpenny
      (2)U.S. currency
      1.20 dollar (and) twenty (cents) 美金一元二角
      4.25 = four dollars twenty-five cents 美金四元二角五分
      (3)Soviet currency 前苏联币
      6 Rb. 15 = six roubles fifteen kopecks 六卢布十五戈比
      (4) German currency 德币
      1 m. 60 = one mark sixty pfennig -马克六十芬尼
      (5)French currency 法国币
      1 fr.30 = one franc. thirty (centimes) -法郎三十生丁
      0 fr.15 = fifteen centimes 十五生丁
      (6) Chinese People's Currency 人民币
      1.50 = one yuan and a half 一元五角
      JMP 10.35 = JMP ten yuan thirty-five (fen) 人民币十元三角五分
      附注:yuan单复数没有变化:也可作为日本本位币"圆"的符号。
      8. Weight and Measures 度量衡
      (1)length,area, and volume 长度、面积和容积
      3 in = three inches 三英寸
      15 ft.5 in = fifteen foot five (inches) 十五英尺五英寸
      [附注] 尤其在inches省略时, ft.读作foot;如果inches也念出来,ft可以读作fett.
      18'6 5/1"= eighteen foot six and a fifth (inches)
      10×8feet= ten by eight feet 十英尺长,八英尺宽
      5"×4×31/2 = five inches by four by three and a half 长五英寸,宽四英寸,高三英寸半
      [附注] 以上二例中,乘号×表示面积或容积。
      (2)Weight 重量
      12 dr. 23 gr.= Twelve drams twenty-three grains 十二打兰二十三喱
      10 oz. 4 dr. = Ten ounces four drams 十盎司打兰
      (3)Capacity 容量
      3 gi. = three gills 三及耳
      1 qt. 1 pt = one quart one pint 一夸脱一品脱
      [附注] qt.,pt. 的复数是qts.,pts.,也可以不加s.
      20 gal. 5 qt. =Twenty gallons five quarts 二十加仑五夸脱
      5 bu. 3 pk. = Five bushels three pecks 五蒲式耳三配克
      + plus 加号;正号
      - minus 减号;负号
      ± plus or minus 正负号
      × is multiplied by 乘号
      ÷ is divided by 除号
      = is equal to 等于号
      ≠ is not equal to 不等于号
      ≡ is equivalent to 全等于号
      ≌ is equal to or approximately equal to 等于或约等于号
      ≈ is approximately equal to 约等于号
      < is less than 小于号
      > is more than 大于号
      ≮is not less than 不小于号
      ≯is not more than 不大于号
      ≤ is less than or equal to 小于或等于号
      ≥ is more than or equal to 大于或等于号
      % per cent 百分之…
      ‰ per mill 千分之…
      ∞ infinity 无限大号
      ∝ varies as 与…成比例
      √ (square) root 平方根
      ∵ since; because 因为
      ∴ hence 所以
      ∷ equals, as (proportion) 等于,成比例
      ∠ angle 角
      ⌒ semicircle 半圆
      ⊙ circle 圆
      ○ circumference 圆周
      π pi 圆周率
      △ triangle 三角形
      ⊥ perpendicular to 垂直于
      ∪ union of 并,合集
      ∩ intersection of 交,通集
      ∫ the integral of …的积分
      ∑ (sigma) summation of 总和
      ° degree 度
      ′ minute 分
      〃 second 秒
      ℃ Celsius system 摄氏度
      { open brace, open curly 左花括号
      } close brace, close curly 右花括号
      ( open parenthesis, open paren 左圆括号
      ) close parenthesis, close paren 右圆括号
      () brakets/ parentheses 括号
      [ open bracket 左方括号
      ] close bracket 右方括号
      [] square brackets 方括号
      . period, dot 句号,点
      | vertical bar, vertical virgule 竖线
      & amp; ampersand, and, reference, ref 和,引用
      * asterisk, multiply, star, pointer 星号,乘号,星,指针
      / slash, divide, oblique 斜线,斜杠,除号
      // slash-slash, comment 双斜线,注释符
      # pound 井号
       backslash, sometimes escape 反斜线转义符,有时表示转义符或续行符
      ~ tilde 波浪符
      . full stop 句号
      , comma 逗号
      : colon 冒号
      ; semicolon 分号
      ? question mark 问号
      ! exclamation mark (英式英语) exclamation point (美式英语)
      ' apostrophe 撇号
      - hyphen 连字号
      -- dash 破折号
      ... dots/ ellipsis 省略号
      " single quotation marks 单引号
      "" double quotation marks 双引号
      ‖ parallel 双线号
      ~ swung dash 代字号
      § section; division 分节号
      → arrow 箭号;参见号
      中国人读做:
      1、"积分";
      2、从 x1 积到 x2;
      英美人士读做:
      1、Integrate
      2、Integral
      3、Integration
      都可以。
      定积分: Definite Integration
      不定积分:Indefinite Integration
      微分的中文读法:
      或 dy、dx,
      或 对y求导、y的导数为。。。
      微分的英文的读法:
      或 dy over dx;
      或 y prime
      或 differentiate y
      或 derivative of y
      或 differentiation of y
      "微分"书面语的简略表示法是:
      Differentiate the following wrtx.
      (对下列函数求y对x的导数)
      wrtx = w.r.t.x.
      = with respect to x
      偏微分:
      英文读法:Partial y over partial x
      partial y,partial x
      中文读法:偏y,偏x.

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