gearless elevator无: not have; there is not; be w ...齿轮: cogwheel; gear wheel wheel-l ...电梯: elevator; lift有齿轮电梯: geared elevator; geared lift无齿轮电动机: gearless motor; gearlessmotor下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:无齿轮电梯,即可在微信中查询翻译