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1Internalpartsofthecoffeemachine咖啡机的内部零件Theinternalpartsdescribedareforabasicpumpdrivencoffeemachinewithasingleboilerandaheatexchangeunit.However,thefeaturesofacoffeemachinevaryenormouslyfromthedifferentmakesandsizes.Forexamplesomemachineshavetwoboilersinsteadofone.Themainpartsofacoffeemachinearetheboiler,thepumpandtheheatexchangeunit..内部零件是指一个基本的泵压意式特浓咖啡机，包括单个的锅炉和一个热交换单元。然而，不同品牌和尺寸的咖啡机，其功能千差万别。例如某些机器，是有两个锅炉的。咖啡机的主要部分为锅炉、泵和热交换单元。Theboiler锅炉Theboilerisalarge,cylindrical,pressurevesselinsidethebodyoftheespressomachinethatcontainswaterandsteam.Insidetheboilerisanelementthatheatsthewatertoproducethesteam锅炉为大圆筒形，在意式浓缩咖啡机的内部，它包含了水和蒸汽的压力容器。Thepump泵Thepumpiselectricallydrivenandpusheswaterinandoutoftheboilerandthroughtheheatexchangeunit.Aswhatisusedup,thepumpreplenishesandcontrolsthesupplefromthewatersource.泵是通过电力驱动的，它将水在锅炉中推压最后令其通过热交换单元。当前的水用完时，泵利用水源处的水来补充和控制，以保证流畅。Theheatexchangeunit热交换单元Theheatexchangeunitregulatesthetemperatureofthewaterbeforeitispumpedintothegroundcoffeebeanstoextract.Thetemperatureofthewaterleavingtheheatexchangeunitislowerthanthatintheboiler热交换单元在水被泵入咖啡粉萃取前调节其温度。离热交换单元的水温应低于锅炉中的水温。2Gauges压力表Gaugesarelinkedtotheinternalpartsbutgenerallyaresituatedonthefrontofthecoffeemachine.压力表与内部零件相连接，但一般都位于咖啡机的前部分。Waterlevel-thewaterlevelgaugeindicatestheamountofwaterintheboiler水位——水位计指示在锅炉中的水量。Pressure-thepressuregaugeregisterstwodifferenttypesofpressure,pumppressureandboilerpressure.Pumppressurecontrolsthepressureofwaterdriventhroughthegroundcoffeebeansduringextraction.Boilerpressurecontrolstheamountofsteamavailableintheboilerfromsteamingmilk.压力——压力表寄存器有两种不同类型的压力，泵的压力和锅炉的压力。泵的压力控制通过研磨的咖啡豆在萃取过程中的水的压力驱动。锅炉压力控制从蒸牛奶在锅炉的蒸汽量。Temperature–thetemperaturegaugeindicatesthetemperatureofthewaterreleasedfromtheheatexchangeunitandintothegroundcoffeebeansinthegroupduringextraction.Theidealtemperatureisaround90˚C.温度——温度表指示在萃取过程中释放出来的热交换单元和咖啡阁中的研磨过的咖啡豆的水的温度。理想的温度是在90摄氏度左右。3Externalpartsofthecoffeemachine咖啡机的外部部件Theexternalpartsofthecoffeemachinevaryintheirtechinalanddesignfeatures.Somemachineforexample,havemoreautomatedcontrolsthanothers.咖啡机的外部零件根据他们的技术和设计特点有很多不同点。例如，有些机器有更多的自动化控制功能。On/offswitch通/断开关Theon/offswitchconnectsthecoffeemachinetothepowersupply.Itactivatesthepumpandheatmechanisms.通/断开关连接咖啡机的电源。它用来激活泵和热机制。Extractioncontrols提取控制Theextractioncontrolsactivatestheflowofhotwaterthroughthegroupheads,flowingintothecup.提取控制激活热水水流，通过组头，流入杯子。Filterbasket篮式过滤器Thefilterbasketisaperforated,stainlesssteelcontainerdesignedtoholdmeasuredportionsofgroundcoffee.Therearemainlytwodifferentsizes,asingleandadouble.篮式过滤器是一种多孔的不锈钢容器，用来放入测量研磨咖啡粉的部分。主要有两种不同的尺寸，一个单份大小的和一个双份大小。Group咖啡制作头Thewordgroupdescribestheassembledgrouphandleandthegrouphead.Coffeemachinearenormallydescribesbytheamountofgroupstheyposses.Smallmachinehaveonegroupandcangoaslargeasfivegroups.咖啡制作头描述组装组合手柄和组头。咖啡机通常由他们拥有的咖啡制作头的个数来区分。小至只有一个制作头的小型机器，大至五组制作头的大型机器。Grouphandle组合手柄Thegrouphandleholdthefilterbasketofgroundcoffeeduringtheextractionsprocess.Itisattachedtothemachinewiththeprotrudinglugsonitsside.在萃取过程中，将咖啡粉放置于组合手柄托着的过滤器篮里。组合手柄的凸缘方便与机器连接。4SteamcontrolSteamcontrol蒸汽控制Thesteamcontrolactivatestheflowofsteamfromthetopoftheboileroutthroughthenozzleofthesteamwand.蒸汽控制将从锅炉出来的顶部的蒸汽激活，使其流通过蒸汽棒的喷嘴。Steamwand蒸汽棒Thesteamwandconsistsofamoveablearmwithanozzleattheend.Itdispensessteamwhichfoamsandheatsupmilk.蒸汽棒由可动臂与尾部的喷嘴组成。它分注蒸汽，使牛奶起泡和加热。Steamnozzle蒸汽喷嘴Thesteamnozzleisattheendofthesteamwand.Itusuallyhasfourholesthatdistributesthesteamindifferentdirections.蒸汽喷嘴是结束时的蒸汽棒。它通常有四个孔，蒸汽分布在不同的方向。Hotwatercontrol热水控制Thehotwatercontrolactivatestheflowofwaterfromtheboilertothehotwaterarm.热水控制激活从锅炉到达热水臂的水流。Hotwaterarm热水臂Thehotwaterarmdispenseshotwaterdirectfromtheboiler.热水臂分注直接从锅炉出来的热水。Cupwarmer/tray暖杯/盘Thecupwarmerisatrayontopofthecoffeemachineforcupstobestoredandwarmedreadyforuse暖杯盘位于咖啡机的顶部，可以使用来存储和温热杯子以备使用。Driptray滴水托盘Thedriptraycollectsspillsanddripsanddirectsthemthroughahoseintoadrainagearea,sometimesabucket,orstraightintoadrain.滴水托盘收集溢出和滴落的水，并引导他们通过软管进入排水区域，可以连接桶或排水管。5Understandingthegrinder了解磨豆机Thegrinderpreparescoffeebeansin3sequentialstagesforuseinthecoffeemachine.磨豆机分三步骤来准备咖啡机所需的咖啡粉。Grindingwholebeanstothesizerequired根据要求的粗细来研磨咖啡豆Dosingpresetamountsofcoffeeintothefilterbasket将适量的咖啡粉放进过滤槽里Tampingthegroundcoffeeintothefilterbasket将过滤槽里的咖啡粉压实Thefollowingdescriptionsofthepartsandexplanationofhowthegrinderworksareformostmodelsthatyou’relikelytofindinyourregularcoffeeshop.Wholebeansflowthroughthehopperintothegrindingmechanismwheretheyaregroundintofineparticles.Theythenflowintothedoserchamberwherecoffeeisnowreadytobeused.以下将介绍你最想在咖啡吧里使用的磨豆机的构造。将咖啡豆倒进漏斗里，启动磨豆机，将咖啡豆研磨成咖啡粉，经研磨的咖啡粉落进粉槽里，等待使用。Partsofthegrinder磨豆机部件On/offswitch开/关旋钮6Theon/offswitchconnectsthegrindertoapowersourceandactivatesthemotor.开/关旋钮连接磨豆机至电源，启动马达。Motor马达Themotorinhiddeninthelargebodysectionofthegrinder.Whenthemotorisactivatedonecuttingbladespinsatahighspeedagainsttheotherwhichremainsstationary.马达置于磨豆机内部，启动马达时刀片快速旋转。Cuttingblades刀片Thecuttingbladesaretwopiecesofsteeldesignedtocutwholecoffeebeansintogroundcoffee.刀片由两片不锈钢组成，快速旋转时能