光束拾聲器;光注拾聲器 light beam pick-in: 光束拾音器ligth beam pick-up: 光束拾聲器light pen pick up: 光筆檢出pick light: 輕型十字鎬pick,light: 輕型十字鎬下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯