Such an exchange would in effect make the operation a request/reply operation, with the reply information not coming from the service provider.

这种交换将有效地使操作成为一个请求／答复操作，并且答复信息不是来自服务提供者。

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However, in general when the two nodes are in separate message flows (for example, Figure 2), you need to forward the necessary correlation information to the reply flow yourself.

然而，在一般情况下，当两个节点在单独的消息流中时(例如，图2)，您需要自己将必要的相关性信息转发给应答流。

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A client can poll a server, using a request - reply protocol to extract information.

客户端可以通过请求-应答协议轮询服务器，以获得信息。

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For example, Homescape, which hosts classified ads for a consortium of newspaper companies, has a find-a-Realtor button that sends information to Reply.

FORBES: Follow the Leader

Inside, I found an extremely courteous and interesting request for information and a stamped addressed envelope for my reply.

BBC: In search of simple phones

But in her reply, Mrs Gandhi said releasing the information might cause a "financial and security risk".

BBC: India's Sonia Gandhi refuses tax disclosure