短語詞組短語emergency fault alarm mechanism 告警機(jī)制emergency signal alarm 緊急信號警報emergency y alarm bell 報警鈴Emergency -alarm 緊急警鈴emergency bell alarm contact 事故警鐘接觸emergency voice alarm communication system 應(yīng)急話音報警通信系統(tǒng)Emergency Voice Alarm Communication Systems 應(yīng)急語音通訊系統(tǒng)Emergency alarm device 緊急報警裝置;緊迫報警安裝general emergency alarm 一般緊急警報;總應(yīng)急警報 返回 emergency alarm