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A point-to-point line directly connects the sending and the receiving devices, and a multidrop line connects many devices, not just one sending device and one receiving device.
点到点线路直接连接发送和接收设备，而多点线路连接多个设备，而不仅仅是一个发送方设备和一个接收方设备。
The advantage of multidrop chain is that many low-capacity stations can be tied to a single 2m PCM line.
多点连接链的优点是很多低负载量的基站可以(与)一个单一的2 M脉冲编码调制线挂钩。
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