新概念汽车实用英语 教学课件 作者 毛矛 新概念汽车实用英语U14.ppt

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1、新概念汽车实用英语UNITFOURTEEN1WORDSANDPHRASESfigureout解决；算出；想出Freon['fri:ɔn]n.氟利昂ozonelayer臭氧层2WORDSANDPHRASESphaseout逐渐停止evaporator[i'væpəreitə]n.蒸发器3WORDSANDPHRASESA/Csystem空调系统refrigerant[ri'fridʒərənt]n.制冷剂；退热药a.冷冻的4WORDSANDPHRASESclutch[klʌtʃ]n.离合器；抓紧miniature['minjətʃə]a.小规模的；纤小的5W

2、ORDSANDPHRASESthermalexpansionvalve热膨胀阀；调温膨胀阀drier['draiə]n.干燥器；干燥剂6WORDSANDPHRASESaccumulator[ə'kju:mjuleitə]n.储液器；积聚者；蓄能器receiver-drier储液干燥器7WORDSANDPHRASESsafetycatch安全制动装置；安全挡thatfar到那里为止；直到8WORDSANDPHRASESdesiccant['desikənt]n.干燥剂gunk[gʌŋk]n.泥状物质9WORDSANDPHRASESprettymuch几乎；

3、差不多blockvalve断流阀；隔断阀10WORDSANDPHRASEScapillary[kə'piləri]a.毛状的；毛细管的n.毛细管thermalbulb测温包；测温筒11WORDSANDPHRASESviceversa（拉丁）反之亦然（略作v.v.）highside高压测；高端12WORDSANDPHRASESsightglass观察镜；观察窗vapor['veipə]n.蒸汽13WORDSANDPHRASEScompatible[kəm'pætəbl]a.相容的；可并立的；适合molecule['mɔlikju:l]n.分子14WORDS

4、ANDPHRASESsludge[slʌdʒ]n.污泥；；碎冰；浮冰ofconcern重要的15WORDSANDPHRASESorifice['ɔrifis]n.孔口isolate['aisəleit]v.隔离；孤立16TEXT：AUTOMOTIVEAIRCONDITIONERAirconditioningwasaninventionthatmadetheSouthaviableplacetoliveanddobusiness.Whentheyfiguredouthowtoaddittoyourcar,thetripthereandbackgotalot

5、better,too.YourA/Csystemmayseemcomplicated,butit'salsoeasytounderstand,andhassomepartsthatyoucanserviceyourself.17AUTOMOTIVEAIRCONDITIONER1.HowitWorks,BasicallyAnysystemthatlowerstemperatureoperatesinsimilarfashion.Firstyoutakeagas,likeFreon,andplaceitinasealedsystem.ThisFreonist

6、henpressurizedusingacompressor.Asit'spressurized,itgetshot.Thishotgasisthencirculatedthroughaseriesoftubesthatdissipatetheheat.Scientifically,thegasremovesheatratherthanaddscold.18AUTOMOTIVEAIRCONDITIONERTousethissysteminacar,itneededverylittleadaptationfromitsearlyapplicationsas

7、arefrigerationdevice.SinceitwasdiscoveredthatFreon(R-12)washarmfultotheearth'sOzonelayer,it'sbeenphasedoutforautomotiveuse,andreplacedwiththeslightlylessefficient,butharmlessR-134arefrigerant.19AUTOMOTIVEAIRCONDITIONER2.ComponentsofAutomotiveAirConditioningYourairconditioningsyst

8、emismadeupofacompressor,acondenser,aneva