充电器应发出警报信号后没有任何一方发起一个欠压继电器或零充电电流继电器。
The charger shall give an alarm signal upon failure initiated by either an under-voltage relay or a zero charging current relay.
当发现由射程范围内的目标发出的所述接收的RF信号时，发出警报信号，以警告目标的接近。
When detecting said received RF signal emitted by a target in range, an alarm signal is provided to warn of the proximity of the target.
如果他们在系统布防时发现了什么问题，就会向基站发送无线警报信号，然后基站会发出警报。
If they detect something wrong while the system is armed, they'll transmit a wireless alert signal to a base station that will then raise the alarm.
如果他们在系统布防时发现了什么问题，就会向基站发送无线警报信号，然后基站会发出警报。
If they detect something wrong while the system is armed, they'll transmit a wireless alert signal to a base station that will then raise the alarm.
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