.轮机英语（轮机长大管轮）Lesson 30 Deck Machinery.ppt

Lesson30DeckMachineryNewWordsandExpressionswindlass[?w?ndl?s]n.锚机，绞车winch[w?nt?]n.绞车capstan[?k?pst?n]n.绞盘，起锚机anchor[???k?(r)]n.锚；v.抛锚，锚定reciprocatingengine[机]往复式发动机brake[bre?k]n.闸，刹车；v.刹车clutch[kl?t?]n.离合器firehazard火灾NewWordsandExpressionsaxial[??ksi?l]adj.轴的，轴向的radialpump径向活塞泵steeringgear操舵装置，舵机spoolvalve短管阀，随动阀，伺服阀variable-deliverypump变量输送泵vane[ve?n]n.(螺旋桨等的)翼，叶片throttle[?θr?tl]v.扼杀，节流sprocket[?spr?k?t]n.链轮齿NewWordsandExpressionswindlass[?w?ndl?s]n.n.辘轳，绞盘；v.用绞盘吊起hawsepipe[h?:zpa?p]n.(航海)锚链管handwheel[h?ndwi:l]n.手轮，驾驶盘capstan[?k?pst?n]n.绞盘，起锚机warp[w?:p]n.卷曲，绞船缆prolong[pr??l??]vt.延长，拖延flange[fl?nd?]n.凸缘，法兰fray[fre?]n.(织物等)磨损处，磨损NewWordsandExpressionsorientation[??:ri?n?te??n]n.方向，方位，定位fiber[fa?b?]n.光纤hand-over-hand双手交替使用Windlassesareusedtoraiseandlowershipsanchors.Winchesandcapstansareusedtohandlewireorropelines.Thesemachineshaveincommonaprimemover,whichmaybeareciprocatingsteamengineonolderships,orahydraulicorelectricmotor,aspeed-reducinggear,andawild-cat,drum,orheadtohaulonthechainorline.Brakesandclutchesareincludedtosuittheapplication.Acontrolsystemisalsonecessary.PrimeMoversAlmostallmoderndeckmachineryisdrivendirectlybyelectricmotorsorbyhydraulicmotorssuppliedbyelectro-hydraulicpumps,butmanyolderships,especiallytankers,remaininservicewithsteam-drivendeckmachinery.Primemoverselectionislargelydeterminedbyownerspreference,althoughthefirehazardassociatedwithelectricalequipmentgenerallyprecludesdirectelectricdriveforexposeddeckmachineryontankers.PrimeMoversHydraulicsystemsfordeckmachinerymayutilizeacentralhydraulicsystemoraunithydraulicsystem.Withunithydraulicsystems,ahydraulicmotorforawinchorwindlassisdrivenbyitsownnearbypumpingunit.Inacentralhyd