.轮机英语（轮机长大管轮）Lesson 38 Instrumentation.ppt

Lesson38InstrumentationNewWordsandExpressionsinstrumentation[,?nstr?mente??(?)n]n.使用仪器controlcabinet操纵室[楼箱]adjacent[?d?e?s(?)nt]adj.邻近的，接近的bulkhead[b?lkhed]n.隔壁，防水壁withdrawal[w?edr??(?)l]n.收回，撤退,退回,取消drastically[dr?stik?li]adv. 激烈地，彻底地tee [ti?]n.T形物，球座turbulence[t??bj?l(?)ns]n.动荡，紊乱，紊流NewWordsandExpressionssnub [sn?b]n.故意怠慢，延迟transducer[tr?nzdju?s?]n.传感器，变频器，变换器controlloop操纵系统，驾驶系统gland[gl?nd] n.[机械]密封管commonsense[kɑm?ns?ns] adj.具有常识的imperative[?mper?t?v]n.不可避免的，必需hardening[hɑ?d?n??]v.淬水tolerable[t?l(?)r?b(?)l]adj.可容忍的，可以的pipework[pa?pw??k]n.管道工程Eventodaytherearemanyexampleswhereonefindsthattheinstallationofinstrumentationonmarineapplicationshasnotbeengiventhethoughtandattentionitjustifies,withequipmentoftenhavingbeenfittedwhereverthereisaconvenientspace(即使在今天，也有许多例子表明：与船舶相关仪器的安装并没有给予它应有的思考和关注，因为设备往往安装在它便于安装的位置).Whenthisoccurs,apartfromthemaximumexposurestoextremeenvironmentalconditions,pooraccessformaintenancepurposescausesmanyoperationalproblems.Spaceinshipsmachineryroomsisoftenverylimitedand,ifpossible,controlcabinetsshouldbedesignedwithfrontaccessformaintenancepurposes.Thiswillallowthecabinettobemountedadjacenttoabulkheadoritemofmainplant.Ifrearaccesstothecontrolpanelisabsolutelynecessarythenadequatespacemustbeallowedforanengineertoworkontheequipmentand,ifrequired,thewithdrawalandreplacementofsame.However,transmittersandothersimilarequipmentmountedlocallytothemachineryarethoseitemsmainlyinstalledincorrectly.Manufacturer’sinstallationinstructions,whichareusuallypackedwiththeinstruments,shouldbecloselyadheredto.Itisstillnotuncommontofindexamplessuchas,steampressuresensinglines,whichshouldbeunlaggedtoallowcondensationtoform,laggedadjacenttothemainsteampipingcausingaveryhightemperatu