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1,民航机务专业英语EnglishforAircraftMaintenanceEngineers,2,3,4,5,6,7,术语Module1Terminology,8,Project1AviationTermsUnit1AircraftsType,9,Avehiclewhichcanflyisclassifiedasfollows：aircraft（1）lighter-than-airaircraftballonairship（2）rotorcrafthelicoptergyroplane（3）glider（4）airplane,10,11,2.Anairplanecanbedividedintothefollowinggroupsaccordingtothetypesofaircraftsengine.（1）propeller-drivenaircraftpistonpropeller-drivenaircraftturboproppropeller-drivenaircraft（2）jetaircraftturbojetaircraftturbofanjetaircraft,12,3.Anairplanecanbedividedintothefollowinggroupsaccordingtotheaircraftsflightvelocity.（1）supersonicaircraftSupersonicaircrafttravelsfasterthanthespeedofsound.（2）hypersonicaircraftHypersonicaircrafttravelsmuchfasterthanthespeedofsound.（3）transonicaircraftTransonicaircrafttravelsapproximatelyequaltothespeedofsound.（4）subsonicaircraftSubsonicaircrafttravelsslowerthanthespeedofsoundbutalsoveryfast.,13,4.Anairplanecanbedividedintothefollowinggroupsaccordingtotheaircraftsairrange.（1）short-rangeaircraft/short-haulaircraftTheairrangeisshorterthan2400kilometers.（2）medium-haulaircraftTheairrangeislongerthan2400kilometersbutshorterthan4800kilometers.（3）long-rangeaircraft/long-haulaircraftTheairrangeislongerthan4800kilometers.,14,5.Anairplanecanbedividedintothefollowinggroupsaccordingtothetypeoflandinggear.（1）landplaneAlandplaneisanairplanethatcantakeofffromorlandonland.（2）seaplane/hydroplaneAseaplaneorhydroplaneisatypeofairplanethatcantakeofffromorlandonwater.（3）amphibianAnamphibianisanairplanewhichcanlandonbothlandandwater.,15,6.Anairplanecanbedividedintothefollowinggroupsaccordingtothenumberofwings.（1）monoplaneAmonoplaneisanairplanewithasinglepairofwings.（2）biplaneAbiplaneisanold-fashionedtypeofairplanewithtwopairsofwings,oneabovetheother.（3）multiplaneAmultiplaneisanairplanewithmorethantwopairsofwings,say,threeorfourpairs.,16,17,7.Anairplanecanbedividedintothefollowinggroupsaccordingtothepositionsofthewingrelativetothefuselage.（1）lowwingairplaneAlowwingairplaneisanairplanewhosewingisbelowthecabin.（2）midwingairplaneAmidwingairplaneisanairplanewhosewingisanywherebetweenthefuselage.（3）highwingairplaneAhighwingairplaneisanairplanewhosewingisabovethecabin.,18,8.Anairplanecanbedividedintothefollowinggroupsaccordingtoitsmission.（1）militaryaircraft（2）civilaircraft,19,Unit2AircraftsStructure,20,1.Airframe（1）fuselageThefuselageoftheairplaneholdsallofthepartstogetherandcarriesthepassengersorcargo.,21,（2）wing/airfoilThewingsgeneratemostoftheliftnecessaryforflight.aileronAileronsarepartsofthewingwhichareusedtorolltheaircraft.Atthetrailingedge,itsanaileron.leadingedgeslattrailingedgeflapFlapsandslatsarepartsofthewingwhichareusedduringtakeoffandlandingtoincreaseliftanddrag.spoilerSpoilersarepartsofthewingwhichareusedtorolltheaircraftandtodecreaseliftandincreasedragduringlandings.Betweentheleadingandtrailingedges,itsaspoiler.,22,（3）empennage/thetailassemblyverticalstabilizerrudderArudderisacontrolsurfaceconnectedtotheverticalstabilizerandisusedtoyawtheaircraft.horizontalstabilizerelevatorElevatorsarecontrolsurfacesconnectedtothehorizontalstabilizerandareusedtopitchtheaircraft.stabilatorStabilatorsarecontrolsurfaceswhichprovidebothhorizontalstabilityandpitchcontrolfortheai
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