流量开关用于声音报警，灯光报警，当无流量时启动电机、泵等继电器或起动器开关。
Waterflow indicator used to sound alarm, light signal, actuate relays or starter switches for motors, pumps, etc. , when no flow occurs.
流量开关用于声音报警，灯光报警，当无流量时启动电机、泵等继电器或起动器开关。
Flow switch used to sound alarm, light signal, actuate relays or starter switches for motors, pumps, etc., when no flow occurs.
流量指示器用于声音报警，灯光报警，当流量发生时启动电机、泵等继电器或起动器开关。
Waterflow indicator used to sound alarm, light signal, actuate relays or starter switches for motors, pumps, etc., when low occurs.
对。我已经看到报警旋转灯的灯光、听到报警喇叭的声音。
Ok . I have seen the light of alarm roating light and heard the sound of the alarm horn .
采用STD总线和模块式结构，以时序鉴别法选线技术，准确定位故障线路，并发出语音报警、灯光及数字显示。
The paper adopts STD bus and modular structure and uses sequence identification wire selection technique to correctly locate the fault lines and indicate with language alarm, light and digitals.
该装置由电源、报警部分、音响灯光部分及外壳组成！
The device comprises an electric source, an alarm part, an acoustic and optical part and an outer shell.
该装置由电源、报警部分、音响灯光部分及外壳组成！
The device comprises an electric source, an alarm part, an acoustic and optical part and an outer shell.
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