《轮机英语轮机长大管轮》_Lesson 22 Maintenance and Troubleshooting of Marine Refrigeration.pptVIP

NewWordsandExpressionsrefrigeration[r??fr?d??re??n]n.冷藏、致冷refrigerant[r??fr?d??r?nt]n.制冷剂，冷冻剂agent[?ed??nt]n工质，介质absorbing[?b?s?rb??]vi.吸收encountered[?nka?nt?d]vi.遇到accommodation[??kɑm??de??n]n住处，住所preserve[pr??z?rv]vt.保存，防腐处理perishable[?p?r???b?l]adj.易腐烂的NewWordsandExpressionsfoodstuff[?fud?st?f]n术食物，食品；粮食；ambient[??mbi?nt]adj.周围的condenser[k?n?d?ns?]n冷凝器compartment[k?m?pɑrtm?nt]n舱室，隔间accustomed[??k?st?md]vi.使习惯于purge[p?rd?]vt.清除，使净化lint[l?nt]n绒布，棉绒strainer[?stren?]n滤器NewWordsandExpressionszinc[z??k]n锌brine[bra?n]n卤水，浓盐水，海水alignment[??la?nm?nt]n校直，对中tightness[ta?tn?s]n紧固calibration[?k?l??bre??n]n校准，标准化inventory[??nv?nt?ri]n存货清单malfunction[m?l?f??k??n]n故障symptom[?s?mt?m,?s?mp-]n症状，征兆NewWordsandExpressionsammeter[??m?mit?]n电表，电流表saturation[?s?t???re??n]n（达到）饱和状态；饱和度compressor[k?m?pr?s?]n压缩机defrosting[difr?st??]v.（给…）化霜，（使…）解冻；融霜moisture[?m??st??]n水分；湿气ingress[??n?ɡr?s]n进入freeze[friz]vi.凝固；结冰venting[vent??]vi.通风；排出NewWordsandExpressionsblockage[?blɑk?d?]n堵塞defective[d??f?kt?v]adj.有缺陷的；有瑕疵的drier[?dra??]n干燥器Theobjectiveofanyrefrigerationsystemistocollectheatfromalowtemperatureareaandmoveittoahightemperaturearea.Refrigerantisasubstancethatactsasacoolingagentbyabsorbingandgivingoffheat.Usuallytherearetwotypesofrefrigerationsystemscommonlyencountered:namelythevaporcompressioncyclerefrigerationsystemandthevaporabsorptioncyclerefrigerationsystem.Themostcommonsystemthatisusedonallshipsisthevaporcompressioncyclerefrigerationsystem.Onboardshiprefrigerationsystemsareusedinthecarriageofsomeliquefiedgasesandbulkchemicals,airconditioningforaccommodations,tocoolthebulkcarbondioxideforfirefightingsystems,topreserveperishablefoodstuffduringstorage,andtopreservestoresonshipslikefish,meat,vegetables,andda