网络控制信号装置  network controlling signal unit

共电制电池  common battery

共电制电话  central battery telephone

船内电气信号装置  inner electric signalling system

光电信号电压  photoelectric signal voltage

失聪者用电信装置  telecommunications device for the deaf; TDD

通信信号电缆  Communication and Signal Cable

保护性压力信号装置  protective pressure signaling unit

报警信号装置  alarm installation; alarm equipment

初始信号装置  initial signal unit

激光信号装置  LSD Laser Signal Device

监视信号装置  supervisory signalling apparatus

警报报警器信号装置  alarm

警报报警器信号装置向……报警  alarm

雷射信号装置  laser signal device

佩带者不适信号装置  personal distress signal unit

清管器信号装置  scraper signaller

清管信号装置  go-devil signaler

闪光信号装置  blinker