electronic annunciator[电子] 电子信号器;电子信号机;电子示号器
Annunciator relay[电] 信号继电器;信号继电器是一种非自动复归的元件;指示继电器;信号继电器
needle annunciator指针示号器
lamp annunciator灯示呼唤器
boiler annunciator锅炉报警器
cable annunciator电缆防盗报警
annunciator light信号盘灯;交通
ANNUN Annunciator信号牌
ann annunciator信号器;型号指示器
N（名词） a device that gives a visual indication as to which of a number of electric circuits has operated, such as an indicator in a hotel showing in which room a bell has been rung 指示器