After a service provider receives a request, it performs the service and then puts the result in a message on the agreed-upon reply channel.

在服务提供者接收请求之后，它执行服务，然后将结果放在达成一致意见的应答通道中的消息内。

This avoids the problem of congesting the network channel with non-critical resources when a high-priority request is pending.

在有高优先级的请求等待时，该功能可以避免让非关键资源占用网络通道的问题。

First, send the request using any transport channel, and receive the response using a different channel but with the same type of transport.

首先，使用任何传输通道发送请求，并使用一个具有同类型传输的不同通道接收响应。

The consumer can't just put a request on any request channel; it has to know the right channel to use to invoke the particular service it needs.

使用者不能将请求随便放到一个请求通道中，它必须知道用于调用其所需的特定服务的合适通道。