cam-operated switch凸轮: cam碰: touch; bump铁: iron操纵: operate; control; roll; stee ...开关: Q-switching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:凸轮(碰铁)操纵开关,即可在微信中查询翻译