科技英语翻译ppt-3

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1、PrepositionESTTranslation-3-PrepositionI.Specialusesofsomeprepositions1.of(1)of+nouns=adjectives(2)of+noun/nounphrase=withinacertainrange●在该实验室的所有计算机中，这一台性能最好。Ofallthecomputersinthislaboratory,thisoneperformsbest.(3)thepartafter“of”isinappositiontothepartbefore“of”●那台较轻的仪

2、器的质量为7公斤。Thelighterdevicehasamassof7kg.●故障检修(trouble-shooting)这一主题将在第9章讨论。Thetopicoftrouble-shootingwillbediscussedinChapter9.(4)“of”isusedinnounphrases(nounscomefromvi.)●图2画出了输出随输入的变化情况。Fig.2showsthevariationoftheoutputwiththeinput.●我们用椭圆(ellipse)来描述行星绕太阳运行的情况。Ellipsesar

3、eusedtodescribethemotionsoftheplanetsaroundthesun.(5)“of”isusedinnounphrases(Nounscomefromvt.)●一个力可以分解成x分量和y分量。Theresolutionofaforceintox-andy-componentsispossible.(Itispossibletoresolveaforceintox-andy-components.)2.with(1)with+abstractnouns=adverbswithcare/withaccuracy/

4、withease/withefficiency/…(2)“withconstruction”asapostmodifier●具有五个部件的机器amachinewithfiveparts(3)“withconstruction”asadverbials●有了雷达，我们就能看到远处的物体。Withradar,wecanseedistantobjects.(4)setphrases:Avaries/changes/increases/decreaseswithB.3.by(1)“by”means“根据，按照”.●根据式(3),我们可以得到以下的

5、表达式。ByEq.(3),wecanobtainthefollowingexpression.(2)bydoingsth./by+n./through+n.(通过……)●通过分析该设备的参数，……Byanalyzingtheparametersofthedevice,…4.for(1)“for”introducestheadverbialofcondition(当……时，如果)●若x>1，则该式不成立。Forx>1，thisequationdoesnothold.●当n=1时，这个因子等于1.Forn=1,thisfactorequals

6、unity.(2)“for”isusedaftersuchnounsasmethod,technique,equation,algorithm,condition,requirement,etc.Notes:methodfordoingsth./methodofdoingsth./methodtodosth.(3)solveAforB●我们必须解这个方程来求那个未知数。Itisnecessaryforus…fortheunknown.5.in(1)“in”isusedbeforeanounthatrepresentsunit●这里t的度量

7、单位为秒。Heretismeasuredinseconds.(2)in+noun/in+doingsth.(=during…,inthecourseof…)inourdiscussion/inanalyzingthedata(3)“in”isusedtoexpressacertainrespectinquality/insize/inspeed…●这些设备的体积各不相同。Thesedevicesdifferinsize.(p.242)●这台机器的速度受到了限制。Thismachineislimitedinspeed.6.on(“一……就”

8、和“在……之后”）(1)on+noun(thenounhasthemeaningofanaction)●稍加思考，我们发现该式并非适合于各种情况。Uponamoment’sreflection