美味一起等
报警器
[名词] alarm; annunciator; announciator; siren; warner;
[例句]他们把烟雾报警器安装在天花板上。
They fitted a smoke alarm to the ceiling.
火警报警器响个不停。The fire-alarm kept jangling (away).
报警器正发出火警警报。The fire-alarm is giving warning of fire.
jack99huang
FIRE ALARM PULL STATION 火警站FIRE ALARM HORN DEVICE 火灾告警喇叭装置FIRE ALARM STROBE DEVICE 火灾告警闸门装置FIRE ALARM CHIME 火灾报警鸣器REMOTE ANNUNICATOR PANEL 远程报警显示屏HIGH LOW ALARM 高低警报器