photocell relayphototube relavphototube relay光电管: electric eye; light-sensitiv ...继电器: electric relay; relay电子管继电器: electronic tube relay; vacuum tube relay; vacuum-tube relay; valve relay晶体管继电器: tra istor relay; transistor relay螺母管继电器: solenoid relay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:光电管继电器，即可在微信中查询翻译
