annunciator
信号继电器
annunciator relay【电】;indicating relay【电】;signal relay【电】
暂无补充释义。
相关词条
annunciator
annunciator boards
annunciator relay
annunciator drop (annunciator disc, calling drop, calling disc)
modular quadruple point annunciator
modular single point annunciator
semigraphic annunciator