继电器内的浮控开关发动报警信号。

A float operated switch in the relay is used to initiate an alarm signal.

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当液位处于高位或低位时，浮球开关动作，发出报警信号。

When the level is high or low the float switch Works and alarms.

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当液位处于高位或低位时，浮球开关动作，发出报警信号。

When the level is high or low the float switch Works and alarms.

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