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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	pbc pbca pbcaa pb cache pbcacs pbcadf pb-cadherin2 pbcak pbcat pbcb pbcba pbcc pbccb pbccc pbcch pbccha pbccm pbcd pbc d7 pbcda pbcdfa pbce pbcec pbcf pbcfi

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。