汽车专业英语翻译题1、Ofallautomobilecomponents,anautomobileengineisthemostcomplicatedassemblywithdominanteffectsonthefunctionofanautomobile.So,theengineisgenerallycalledthe“heart”ofanautomobile.汽车发动机是一切汽车部件中结构最复杂，对汽车功能起支配作用的一个总成。所以发动机通常被称为汽车的心脏。2、Theinternalcombustionenginescanbemadetooperateonalmostanythingthatcanbeconvertedintoagasthatwillburn:wood,coal,alcohol,vegetableoils,mineraloils,etc.内燃发动机可用几乎一切可转换成可燃气体的燃料：柴、煤、酒精、植物油、矿物油等等。3、accordingtothefuelenergytheyuse,theinternalcombustionenginescanalsobeclassifiedasgasolineengines,keroseneengines,dieselenginesandLP-Gasengines.根据内燃机所用的燃料能源，内燃发动机也可归类分为汽油发动机、煤油发动机、柴油发动机以及液化石油气发动机。4、Thesparkplugisfiredtoignitetheair-fuelmixturepriortothepistonbeingattheTopDeadCenter.在活塞到达上止点前，火花塞发火点燃可燃混合气。5、scientistshavestillbeenmakingeffortstoconcentratethefuturedevelopmentofenginesonthethreetargets:reducingfuelconsumption,loweringexhaustemissions,andreducingenginenoise.科学家们仍然一直在作出努力把发动机未来的发展集中在三个目标上：减少耗油量、降低废气排量以及降低发动机噪音。6、Evenwhenthecylinders,thecylinderheads,orcylindersleevesareseparatepieces,thecrankcaseisstillthelargestsinglepartintheengine,towhichalloftheenginepartsareattacheddirectlyorindirectly.即使气缸，气缸盖或气缸套都是分离部件，曲柄箱仍应是发动机最大的铸为一体的部件，发动机其它一切部件都直接或间接地安装在它的上面。7、Thismajorunitmustbestrongandrigidenoughtowithstandanybendingordistortion.这一主要部件必须非常坚固刚硬，才能足以抗得住任何的弯曲或扭曲。8、Itmayalsobeinanyothershapestopromoteturbulenceorhelpcontrolcombustion.它（气缸顶部）也可以呈其它能促进紊流或有助于控制内燃的形状。9、Inotherwords,itmustbeprovidedwithcounterbalancedweightsthatextendradiallyfromthecrankshaftcenterlineintheoppositedirectionofthecrankarms.换言之，它（曲轴）必须装有平衡块，而且平衡块应径向地从曲轴中心线向曲柄相对的方向延伸安装。10、Thevalveoperatingassemblyincludestheliftersorcamfollowers,pushrods,rockerarmsandshaftsorpivot,valve,springs,retainers,rotators,seals,andlocks,thepurposeofthistoopenandclosetheintakeandexhaustportsthatleadtothecombustionchambersasrequired.气门机构总成包括气门挺柱或凸轮随动杆、推杆、摇臂、摇臂轴、气门、气门弹簧、弹簧座、转阀器、油封和锁止夹，它的功用是根据需要打开和关闭通到燃烧室的进气口和排气口。11、Onewaytodetermineifyourvalvecoverisbentistoremovethegasketandputthevalvecoverbackontothecylinderhead.判断气门室盖翘曲变形的一种方法是移去其衬垫，然后把气门室盖放回到气缸盖上。（根据它们之间的缝隙判断）12、Thevalvespringskeepthevalvesclosedtightlyagainsttheirseatsuntilthevalveisopenedbythecam.在气门被凸轮打开之前，气门弹簧把气门紧紧地压靠在气门座上。13、Thefuelsystemworksaccordingtotherequirementsoftheengine“providesanair-fuelmixturewhichmustbeinproportiontothespeedandloadplacedontheengine.燃料系是根据发动机需求而工作的，因为燃料系供给的可燃混合气必须与发动机的转速和荷载成相对比例。14、thefueltankisusuallyeitherflange-mountedontothefrontluggagecompartmentfloor,orstrap-mountedtothesamecompartmentbulkhead.燃油箱通常要么凸缘安装于行李仓地面上，要么捆绑安装于行李仓的隔板上。15、Thefiltermustpreventforeignparticlesfrombecominglodgedinandinterferingwiththenormalactionofthefuelpumpvalvemechanism燃油滤清器必须防止各...
