A channel serves as a logical connection inside of the network connection to the message broker.
这个通道是消息协商器的网络连接中的一个逻辑连接。
In some cases the schedulingof a logical link results in changing to a different physical channel from theone that was previously used.
在一些场景中，逻辑链路的调度会导致有些物理信道从原来被用着的变换为一个不同的信道。
You can think of a channel as a logical representation of the data flow between the L2CAP layers in remote devices.
你可以把通道想象成两个远程设备的L2 CAP层之间的数据流的逻辑形式。
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