非文学翻译(口译) week 10

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1、翻译讲评Dieselengineoperatingfeatures(paragraph2)Nowletuscomparethedieselenginewiththegasolineengine.Firstly,theexplosivemixtureofthegasolineengineisprovidedbyacarburettor,butinthecaseofthedieselenginethesupplyiseffectedbyaninjectionor"jerk"pumpwhichforcesa"sh

2、ot"offuelintoeachcylinderinturnaccordingtothecorrectfiringsequence.üexplosivemixture爆炸性混合物/（可）爆燃混合气üthesupply=thesupplyoftheexplosivemixtureütoeffect=tobringabout;tocausesthtooccur使产生；使发生ü…thesupplyiseffectedby…=…themixtureissuppliedby…üaninjectionor"jerk"

3、pump=an18injectionpumpor“jerk”pumpüinjectionpump喷射泵/喷油泵üjerkpump高压燃油喷射泵/脉动作用泵译：现在，让我们比较一下柴油发动机和汽油发动机。首先，汽油发动机的爆燃混合气是由化油器提供的，而柴油机的爆燃混合气则由喷油泵（即脉动作用泵）提供，由喷油泵按照正确的点火顺序将燃油依次“射”入各汽缸。Secondly,thefundamentaldifferencebetweengasolineanddieselenginesisthatinthegasol

4、ineenginethesourceoftheheatforignitingthecharge,namely,anelectricspark,isgeneratedoutsidetheengine,andistaken,asitwere,intothewaitingchargeattherequiredinstant.a.thesourceoftheheat热源18a.thecharge燃料/混合燃气b.thesourceoftheheat=anelectricsparkc.asitwere:usedwhe

5、ndescribingsomethinginawaythatisnotquiteexact可以说；可谓viz.,译：其次，汽油发动机与柴油发动机的基本区别在于：汽油机中用于点燃混合燃气的热源（即电火花）是在发动机外面产生的，可以说电火花总是在需要的时刻被引入待燃的混合气中。Inthedieselenginethesourceofheatforignitingthechargeiscreatedwithintheenginebycompressingpureairtoadegreethatwillinitia

6、tecombustionandthen[by]injectingthefuelattherighttimeinrelationtothemovementofthecrankshaft.a.Thesourceofheatiscreatedbycompressing…andtheninjectingthe…b.toinitiatecombustion18是什么在燃烧？是空气还是燃料（charge）？译：而在柴油发动机中，用于点燃混合气的热源是在发动机内部产生的，方法是将纯空气压缩，直到燃料可以被引燃的程度，随后

7、，因应曲轴的运动，燃油适时地喷入。Bothclassesofenginesareofverysimilarconstruction.Butasthedieselengineiscalledupontowithstandverymuchgreaterstressesduetohigherpressuresincylinders,ithastobeofmoresubstantialconstruction,andisthusheavier.a.construction结构b.stresses应力e.g.astr

8、essof240MPa/astressof200–1000Pa/astressof2900kg/cm2译：18这两种发动机的结构是很相似的，但是由于柴油发动机汽缸内压强更高，它必须能够承受大得多的应力，因此它的结构必须更加坚固，重量也更大些。Ingeneral,thedieselenginemayweighabout9.25kilogramsperkilowatt.Themostimportantadvantag