首页 英语 各种运算

英语 各种运算

举报
开通vip

英语 各种运算nullHow to Say Various Formulas in English for Scientific and TechnologyHow to Say Various Formulas in English for Scientific and TechnologyProfessional(or specialty) English for Thermal and Power Engineering Yuyan HuNumbers-fractionsNumbers-fractions1/2a half...

英语  各种运算
nullHow to Say Various Formulas in English for Scientific and TechnologyHow to Say Various Formulas in English for Scientific and TechnologyProfessional(or specialty) English for Thermal and Power Engineering Yuyan HuNumbers-fractionsNumbers-fractions1/2a half 或 one half1/3a third 或 one third2/3two thirds1/4a quarter 或 one quarter; a fourth 或 one fourth1/10a tenth 或 one tenth1/100a (one) hundredth1/1000a (one) thousandth1/1234one over a thousand two hundred and thirty-four3/4three fourths 或 three quarters4/5four fifths 或 four over five113/300one hundred and thirteen over three hundredNumbers-fractionsNumbers-fractionstwo and a halftwo and seven over eight 或 two and seven eightsthree and a eighthfour and a thirda (one) hundred twenty-five and three fourths (quarters)Number-DecimalNumber-Decimal0.1(及.1)O point one 或 zero point one 或 nought point one0.01(及.01)O point O one 或 zero point zero one 或 nought point nought one0.25(及.25)nought point two five 或 point two five0.045decimal (point) nought four five2.35two point three five four point nine recurringthree point nought three two six, two six recurring45.67four five (forty-five) point six seven38.72three eight point seven two 或 thirty-eight decimal seven two0.001(及.001)O point O O one 或 nought point nought nought one或zero point zero zero one 或 point nought nought oneOperatorOperator+plus; positive-minus; negative±plus or minusminus or plus×(及·)multiplied by; times÷divided by=is equal to; equals≡is identically equal to≈≒is approximately equal to; approximately equalsis equivalent to→ maps into, yield ,arrow, approaches limit(, )ratio of OperatorOperator( )round brackets;parentheses[ ] square (angular) brackets{ }braces∩intersection∪union∈is member of setis a subset of{ }或empty set∴therefore∵becauseOperatorOperatori 或 jimaginary 或 square root of -1factorial x∑the sum of the terms indicated; summation of; sigma∏the product of the terms indicatedinfinityvector Fangle aright angle aSuperscript&SubscriptSuperscript&Subscriptb primeb double prime; b second primeb triple primeb sub oneb sub mx dotx two dotsb double prime sub mFunctionFunctionlog x to the base nlog x to the base 10 (即 common logarithm)log x to the base e (即 natural logarithm 或 Naperian logarithm)to n factors; the nth power of x, x to the power nthe nth root of x, x to the power one over nx approaches the limit athe absolute value of xthe mean value of x; x barFunctionFunctionf 或Ffunctionfunction f (或) of xy is a function of x(finite difference或increment) delta(the increment of x) delta x(an increment of x considered as tending to zero) dee of x; dee x; differential xthe differential coefficient of y with respect to x; the first derivative of y with the second derivative of y with respect to xFunctionFunctionn th derivative of y with respect to xthe partial derivative of y with respect to u, where y is a function of u and another variable (or variables)the first derivative of function F of x with respect to x;del; nabla; vector differential operatornth del (nabla)integralcontour integralFunctionFunctionsurface integralvolume integralintegral between limits a and blimit Function Function(the principal value of the angle whose sine is x) arc sine of xsinh x the hyperbolic sine of xsin xsine x;sine of xcos xcosine x; cosine of xtangent x; tangent of an angletan xcot xcotangent of x或csc xsec xarc cosine of xUnit Unit tonggramozouncelbpoundtcwthundredweightsecsecondminminutehrhourwkweekmthmonthyryearmmetreininchftfootydyardsquare metrecubic metre L litreweighttimedistanceareavolumemphmiles per hourm/smetre per secondl/hrlitre per hourrpmrevolutions per minute speedhectareha.unitunitconcentration%percent‰per millemolppmppbmoleparts per million parts per billion temperature℃℉Kdegree Centigradedegree FahrenheitKelvinenergyJjoulecalcaloriewattwpshorsepowerAAmpereVvoltΩOhmWbTWeberTeslaCCoulombNPanewtonBaratmkgfkilogram forcepascalpounds per square inchpsiatmospherepressureforceelectricity and electronictorr国际单位制中用以 关于同志近三年现实表现材料材料类招标技术评分表图表与交易pdf视力表打印pdf用图表说话 pdf 示十进制倍数的词头及符号国际单位制中用以表示十进制倍数的词头及符号ExamplesExamples1 Terametre 垓米 兆兆 = 1 Tm = 1,000,000,000,000 m =1012 metres 1 Gigametre 京米 千兆=1 Gm = 1,000,000,000 m =109 metres 1 Megametre兆米[百万米] =1 Mm = 1,000,000 m =106 metres 1 Hectokilometre 十万米 =1 hkm = 100,000 m =105 metres 1 Myriametre万米 =1 mam = 10,000 m =104 metres 1 Kilometre公里[千米] =1 km = 1,000 m =103 metres 1 Hectometre百米 =1 hm = 100 m =102 metres 1 Decametre十米 =1 dam = 10 m =10 metres ExamplesExamples1 Metre米 =1 m = 1 m =1 metre 1 Decimetre分米 =1 dm = 1/10 m =10-1 metre 1 Centimetre厘米 =1 cm = 1/100 m =10-2 metre 1 Millimetre毫米 =1 mm = 1/1,000 m =10-3 metre 1 DecirnilIimetre丝米 =1 dmm = 1/10,000 m =10-4 metre 1 Ceptimillimetre忽米 =1 cmm =1/100,000 m =10-5 metre 1 Microtnetre微米 =1 μm = 1/1,000,000 m =10-6 metre 1 Nanometre毫微米 =1 nm = 1/1,000,000,000 m =10-9 metre 1 Picometre微微米 =1 pm = 1/1,000,000,000,000 m =10-12 metre 1 micron微米 =1 μ=10-6 m =10-4 cm =10-3 mm 1 millimicrnn 毫微米 = 1 mμ=10-9m =10-7cm =10-6mm=10-3μ 英美大数命名异同英美大数命名异同Greek letter Greek letter nullGreek letter Exercises Exercises x plus ybracket a plus b bracket closeda equals b; a is equal to b; a is ba is not equal to b; a is not ba plus or minus ba is approximately equal to ba is greater than ba is much [far] greater than ba is greater than or equal to bExercises Exercises a is greater than or equal to ba ≯ ba is not greater than ba is less than ba is much less than ba is less than or equal to ba ≮ ba is not less than ba is perpendicular to bx approaches infinitya is identically equal to b; a is of identity to ba is parallel to bthe difference between a and ba varies directly as bExercises Exercises once one is onetwice two is foursix times [multiplied by] five equals [is equal to; are; makes; make] thirtythirty is five times as large as sixs equals [is equal to] v multiplied by t; s equals v times t the ratio of one to two12 divided by 3 equals [is] 4the ratio of 20 to 5 equals the ratio of 16 to 4; 20 is to 5 as 16 is to 4a is to b as c is to da plus b is [are; equals; is equal to] cExercises Exercises c minus b is [equals; is equal to] a; b from c leaves av equals s divided by t,v is s over t7 plus 3 is less than 1212 is greater than 7 plus 372 minus 16 is [equals; is equal to]56; 16 from 72 leaves 56 x square; x squared; the square of x; the second power of x; x to the second powerthe second power of 5 is 25; 5 square is 25; the square of 5 is 25; 5 to the second power is equal to 25y cube; y cubed; the cube of y; y to the third power; y to the third y to the minus tenth (power)ExercisesExercisesthe square root of 4 is [equals] plus or minus 2the cube root of athe fifth root of x squarethe square root of five hundred and eighteenthe cubic root of nine hundred and thirtythree times x equals 5x raised to the third power divided by five equals y squaredx squared with y squared equals 10ExercisesExercisesa equals V sub t minus V over [divided by] ta plus b minus c multiplied by d, all divided by e equals feight plus six and five-eighths minus three decimal [point] eight eight multiplied by four, all divided by two and a half23 into 4567 goes 198 times, and 13 remainder45, 70 and 152 added together are 267ExercisesExercises2%two percent5‰five per millethree eighths (of one) per0.3%point three percenthalf a tontwo thirds of a tonthree quarters of a kilometerExercisesExercisesone point seven five kilometerssixty miles per hourseventy-two hundreds revolutions per minutetwenty degrees①6 minutes ②6 feet ①10 seconds ②10 inches0℃zero degree Centigrade [Celsius]100℃one [a] hundred degrees Centigrade32℉thirty-two degrees FahrenheitFrequently Used Latin AbbreviationsFrequently Used Latin AbbreviationsMathematical Ex.1Mathematical Ex.1It is generally reads as: Eight plus six and five eighths minus three point eighty-eight multiplied by four, all divided by two and a half Mathematical Ex.2Mathematical Ex.2It is read as: Little a times r to the n minus one power plus the cube root of x, equals big A plus B over T, plus T over log R to the base ten.Mathematical Ex.3Mathematical Ex.3The integral from zero to pi over two of dee x over one plus αtimes cosine of x, plus the sum from r equals zero to r equals n of the quantity n things taken r at a time squared, equals the integral from x equals zero to x equals b of the function f of x times dee x The integral from zero to pi over two of the quantity one over one plus αtimes cosine of x with respect to x, plus the sum from r equals zero to r equals n of the quantity n over r at a time squared, equals the integral between the limits x equals zero and x equals b of the function of x with respect to xMathematical Ex.4Mathematical Ex.4The quantity a plus b to the nth power equals to the nth power plus n times the quantity a to the n minus one power times b plus n times bracket n minus one bracket closed divided by two times the quantity a to the n minus two power times b squared down to b to the nth powerChemical and physical Formulas-1Chemical and physical Formulas-1F E and S react to give F E SS I O two and two C react to form S I and two COOpen bracket N H four close bracket twice C P two O sevenChemical and physical Formulas-2Chemical and physical Formulas-2Two K C L O three, when heated in the presence of a manganese dioxide as a catalyst forms two K C L and releases three O twoTwo potassium chlorate, in the presence of a manganese dioxide catalyst on heating, forms two potassium chlorate and releases three oxygen Chemical and physical Formulas-3Chemical and physical Formulas-3Six N H four O H plus A L two open bracket S O four close bracket three times yield two A L open bracket O H close bracket three times plus three open bracket N H four close bracket twice S O four When ammonium hydroxide is added to a solution of aluminum sulfate, aluminum hydroxide and ammonium sulfate are formednullChemical and physical Formulas-4C H four and two O two react to give C O two and two H two Methane reacts with oxygen to produce carbon dioxide and water One molecule of methane reacts with two molecules of oxygen to form one molecule of carbon dioxide and two molecules of water One mole of C H four plus two moles of O two react to produce one mole of C O two and two moles of H two O One mole of C H four plus two moles of O two react to produce one mole of C O two and two moles of H two OnullChemical and physical Formulas-5P V equals N R T equals g over M times R T Where: P=pressure V=volume N=g/M R=ideal-gas constant T=absolute temperature g=weight of gas of molecular weight M
本文档为【英语 各种运算】,请使用软件OFFICE或WPS软件打开。作品中的文字与图均可以修改和编辑, 图片更改请在作品中右键图片并更换,文字修改请直接点击文字进行修改,也可以新增和删除文档中的内容。
该文档来自用户分享,如有侵权行为请发邮件ishare@vip.sina.com联系网站客服,我们会及时删除。
[版权声明] 本站所有资料为用户分享产生,若发现您的权利被侵害,请联系客服邮件isharekefu@iask.cn,我们尽快处理。
本作品所展示的图片、画像、字体、音乐的版权可能需版权方额外授权,请谨慎使用。
网站提供的党政主题相关内容(国旗、国徽、党徽..)目的在于配合国家政策宣传,仅限个人学习分享使用,禁止用于任何广告和商用目的。
下载需要: 免费 已有0 人下载
最新资料
资料动态
专题动态
is_795486
暂无简介~
格式:ppt
大小:1MB
软件:PowerPoint
页数:0
分类:工学
上传时间:2013-07-01
浏览量:22