单词	crank arm operator
释义	crank arm operator roto operator roto operator A gear-driven device, turned with a small crank handle or knob; used to open and close jalousies, awning windows, casement windows, and fanlights.
随便看	rhfsh rhfsp rhft rhfuq rhg rhga rhgb rhgc rhgcc rhgcf rhg-csf rhgcsf rhg/d sclt scltc sclu sclug sclw sclwr scly s&cm sc&m scm scm+ scma

英语词典包含2567994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。