各种符号、数字英语读法

1、实用标准文案常用的数学符号英文读法一、一般符号对应的英文单词 period 句号， comma 逗号： colon 冒号； semicolon 分号！ exclamation 惊叹号？ question mark问号 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 French quotes法文引号；书名号. ellipsis省略号¨tandem colon双点号&quo

2、t; ditto同上 parallel 平行 双线号 virgule 斜线号文档实用标准文案 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 or cross叉乘÷ 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 approxima

3、tely 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（is greater than在数学中更常用）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 文档实用标准文案 infinity 无限大号 varies as 与 成比例 (square) root平方根 since;

4、 because因为 hence所以 equals, as (proportion)等于，成比例 angle 角 semicircle 半圆 circle 圆 circumference 圆周 pi 圆周率 triangle 三角形 perpendicular to垂直于；另外normal to，right to也都有垂直的意思。 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摄氏度文档实

5、用标准文案 at 单价 pi. dot ( 点乘就是 centered dot)? ：偏微分符号 ,? 读作 round 法国人发明的 .偏导数英文翻译为partial derivative,因此有时读为partial. 还有一种读法,念成 round? ：是希腊字母的古典写法 ,数学里只用作表示偏导数的记号,在表示偏导数的时候 ,一般不念字母名称 ,中国人大多念作“偏”,(例如z 对 x 的偏导数 ,念作“偏z 偏 x” .)(简单的把? y/ ?x 读成偏 y 比偏 x)倒三角符号 读“Nabla ”,奈不拉 ,也可以读作“ Del ”，读 nabla 的居多， Del 在某些英文书里会见

6、到。 nabla 符号本身具有不同的功能，当它按不同的乘法规则作用于函数时会分别得到f f prime f撇A 上面一个横杠： A barA 上面一个星星 * ： A asteriskA 上面一个波浪线： A tildeA 的厄米共轭（注意不是加号，那个竖比横长）： A dagger （dagger ：短剑，匕首）梯度： grandient符号为 grad ，散度：divergence符号为 div 。此时可直接读作 grandient（divergence ） of .文档实用标准文案1.Logic逻辑?there exist?for allp? qp implies q / if p, t

7、hen qp if and only if q /p is equivalent to q / p and q arep? qequivalent2.SetsxAx belongs to A / x is an element (or a member) of Ax? Ax does not belong to A / x is not an element (or a member)of AA? BA is contained in B / A is a subset of BA? BA contains B / B is a subset of AABA cap B / A meet B

8、/ A intersection BA BA cup B / A join B / A union BABA minus B / the diference between A and BA×BA cross B / the cartesian product of A and B3. Realnumbersx+1x plus onex-1x minus one文档实用标准文案x±1x plus or minus onexyxy / x multiplied by y(x - y)(x + y)x minus y, x plus yx yx over y=the equal

9、s signx = 5x equals 5 / x is equal to 5x5x (is) not equal to 5xyx is equivalent to (or identical with) yx yx is not equivalent to (or identical with) yx > yx is greater than yxyx is greater than or equal to yx < yx is less than yxyx is less than or equal to y0 < x < 1zero is less than x

10、is less than 10x 1zero is less than or equal to x is less than or equal to 1| x |mod x / modulus xx 2x squared / x (raised) to the power 2文档实用标准文案x 3x cubedx 4x to the fourth / x to the power fourx nx to the nth / x to the power nx- nx to the (power) minus nx(square) root x / the square root of xx 3

11、cube root (of) xx 4fourth root (of) xx nnth root (of) x( x+y ) 2x plus y all squared( x y ) 2x over y all squaredn!n factorialx x hatxx barx?x tildex ixi / x subscript i / x suffix i / x sub ithe sum from i equals one to n a i / the sum as i runs from 1 i=1 n a ito n of the a i4. Linearalgebra x the

12、 norm (or modulus) of x文档实用标准文案OAOA / vector OAOAOA / the length of the segment OAA TA transpose / the transpose of AA - 1A inverse / the inverse of A5. Functionsf( x )fx / f of x / the function f of xf:STa function f from S to Txyx maps to y / x is sent (or mapped) to yf prime x / f dash x / the (f

13、irst) derivative of f with respect tof'( x )xf double-prime x / f double-dash x / the second derivativef''( x )of f with respect to xtriple-prime x / f triple-dash x / the third derivative of f withf'''( x )respect to xf (4) ( x )f four x / the fourth derivative of f with res

14、pect to x?f ?x 1the partial (derivative) of f with respect to x1? 2f ? x 1the second partial (derivative) of f with respect to x12 0 the integral from zero to infinitylim ? x 0the limit as x approaches zero文档实用标准文案lim ?x 0the limit as x approaches zero from above+lim ?x 0the limit as x approaches ze

15、ro from below-log y to the base e / log to the base e of y / natural log (of)log e yylog y to the base e / log to the base e of y / natural log (of)Ln yy二、一些函数关系的读法A 与 B 的乘积the _ product of A and B（ _中填乘积的性质，例如外积就填outer ，内积就填 inner)A 乘以 B A times B or A is multiplied by B A/B A over B B 分之 A 的最普通读法f

16、(x) f of x函数 f(x)exp(n) e to powers of n e的 n 次幂三、 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 序数文档实用标准文案Roman ArabicNumerals Numerals罗马数字阿拉伯数字读法数码读法I 1 one 1st the firstII 2 two 2nd the second III 3 three 3rd the third IV 4 four 4th the fourth V 5 five 5th the fifth VI

17、6 six 6th the sixthVII 7 seven 7th the seventh VIII 8 eight 8th the eighth IX 9 nine 9th the ninthX 10 ten 10th the tenthXI 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 fifteenthXVI 16 sixte

18、en 16th the sixteenthXVII 17 seventeen 17th the seventeenthXVIII 18 eighteen 18th the eighteenthXIX 19 nineteen 19th the nineteenth文档实用标准文案XX 20 twenty 20th the twentiethXXI 21 twenty-one 21st the twenty-firstXXV 25 twenty-five 25th the twenty-fifthXXX 30 thirty 30th the thirtieth XL 40 forty 40th t

19、he fortieth L 50 fifty 50th the fiftiethLX 60 sixty 60th the sixtiethLXX 70 seventy 70th the seventieth LXXX 80 eighty 80th the eightieth XC 90 ninety 90th the ninetiethIC 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

20、 second246 two hundred and forty-six751 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一百万文档实用标准文案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 =

21、 one billion百亿 ten thousand million = ten billion千亿 one hundred thousand million = one hundred billion万亿 one billion = one trillion2.Fractions分数通常将分子读为基数，将分母读为序数。1/2 = a (or one) half1/3 = a (or one) third1/4 = a quarter or one fourth1/5 = a (or one) fifth2/3 = two thirds9/10 = nine tenths53/4 = fiv

22、e and three quarters15/64= fifteen over (or by) sixty-four15% = fifteen per cent4= four per mill文档实用标准文案3.Decimals小数0.4 = zero (or nought) point four.01 = point (or decimal) nought one12.34 = twelve point three four567.809 = five hundred and sixty-seven point eight nought nine30.45 = thirty point fo

23、ur five, five recurring0.3% = decimal three percent4.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) 267the sum (or total) is 267.演算时的读法：Three and seven are ten;I writ

24、e(or I write down,or I put down)a nought and carry one.Four and onethatI carryare five,and eightmakethirteen,andthreesixteen;I write down six and carry one. One and one (that I carry) are two;文档实用标准文案I put down two.The sum (or total, or the result of the addition) is two hundred and sixty.37,80 and

25、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=15,4798,175 (take or subtracted) from 23,654 leaves 15,479.The difference (or The remainder) is 15,479.Nine from five wont go.演算时的读法：Nought from

26、 nought (leaves) nought.One from one leaves nought (or nothing).Two from three (leaves) one.I cant 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 subtracted) from 14,310 leaves 9,100.(3)

27、Multiplication乘法1×0=0 One multiplied by nought equals nought.文档实用标准文案1×1=1 Once one is one.2×1=2 Twice one is two.3×5=15 Three times five is fifteen6×0=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

28、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.

29、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.文档

30、实用标准文案(4)Division除法9÷3=3 Nine divided by three makes (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 quoctient is 198, and 13 remainder.演算时的读法 :Fifteen into thirteen wont go;fifteen into one hundred and

31、 thirty-eight goes nine times;nine times fifteen are one hundred and threty-five;one hundredand thirty-fivefromonehundredandthirty-eightleavesthree;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-

32、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 时零文档实用标准文案5 分列车又

33、二十四小时混合制的写法和读法如下：0900= 0 nine hundred (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1st Oct. 1949 = th

34、e 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 sixty19- nineteen something1950 s nineteen fifties二十世纪五十年代文档实用标准文案附注 联系年份的前置词用in.6.

35、Numbers 号码(1)Telephones Numbers电话号码1023= one O two three; ten twenty-three1227= one double two (or two two) seven0386= O three eight six0096= double O(or O O )nine six7000= seven O double O = seven thousandNo.26= Number 26第 26 号Room 201 = Room two O one第 201 房间10 Changan Street = Ten Changan Street长

36、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-si

37、x哈姆雷特第 3 幕第一场第 56 行Matt.7:12 = Matthew, Chapter Seven, Verse Twelve马可福音第七章第文档实用标准文案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 th

38、e 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 townf = 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三便士三铜元文档实用标准文案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 p