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单词	airscrew
释义	airscrew /ˈɛːskruː / noun British An aircraft propeller.In 1480, Leonardo da Vinci drew his famous ‘airscrew’ machine which could never have flown.... Both planes were triplanes with twin tractor airscrews driven by shafts from the fuselage. This helicopter had four lifting airscrews and five auxiliary propellers.
随便看	hydrographical hydrographically hydrography hydroid hydrolase hydrologic hydrological hydrologically hydrologist hydrology hydrolysate hydrolyse hydrolysis hydrolytic hydrolyze hydromagnetic hydromagnetics hydromancy hydromassage hydromechanical hydromechanics hydromedusa hydromel hydrometeor hydrometer

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