A method of connecting a series of devices to a single controlling circuit using a single cable interrupted by each device.
利用电缆线将一系列设备中的每一个都串接起来，再连接到单个控制电路的一种方法。
A method of connecting a series of devices to a single controlling circuit using a single cable interrupted by each device.
利用电缆线将一系列设备中的每一个都串接起来，再连接到单个控制电路的一种方法。
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