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	ombù ombú omda omdah omdda omdeh Omdurman -ome omee omega omega-3 omega-3 fatty acid omega-6 omega-form Omega point omegatron Omega Workshop omelet omelet aux fines herbes omelet soufflé omelette omelette aux fines herbes omelette soufflé omen omen bird

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