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.
另一个例子是，继电器，电气载开关。
Another example is the relay, an electrically-carrying switch.
你也可以使用这些开关来控制固态继电器。
You also can use the switches to control solid-state relays.
它是一台由开关和继电器控制的，必须手工设定。
It was controlled, however, by switches and plugs that had to be manually set.
继电器是一个电的开关。
多台执行器连接的正确方式是使用多级转换开关和继电器。
For correct installation use a multiple pole switch or relay as shown below.
关闭开关。 重新安装后上灯电路继电器。
关闭开关。 重新安装后上灯电路继电器。
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