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	signal post signal reaction signal red signal sequence signal service signals intelligence signal station signal strength signal strip signal-to-noise signal-to-noise ratio signal tower signalwoman signal word sign art sign artist signary signate signation signator signatory signatum signature signature block signature book

英语词典包含243303条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。