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	numerary numerate numerated numeration numerative numerator numeric numerical friend Indian friendism friendless friendlihood friendlike friendlily friendliness friendly friendly bacteria friendly-fiendly friendly fire Friendly Games Friendly Islands friendly lead friendly society friend of Dorothy friendship

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