Line 7-12: Iterate over all message entries and create links to each pending message, displaying its title.
第7 - 12行：遍历所有消息条目并为每个待审消息创建链接和显示标题。
The process instance executes to the Retrieve message Receive activity, where the process will wait pending the arrival of a message for processing.
流程实例执行RetrieveMessageReceive行为，在其中流程将等待消息的到来以进行处理。
In this case, the receiver of the request subaction generates a 'pending acknowledge' to signal the requester node that the message has been well received, and that a response subaction will follow.
这样，请求子处理的接收者生成一个“未决回应”通知请求节点消息已经收到，随后跟一个响应子处理。
Figure 3 This message indicates a successful request, pending certificate issuance.
图3此消息指示成功的请求，挂起的证书颁发。
If the send mode is buffered then the message must be buffered if there is no pending receive.
发送完成函数在数据已经被全部拷贝出发送缓冲区后返回。它也许会附带额外的信息，根据发送模式。
Process the quit message now that all pending messages have been handled.
创建消息的过程，就是填充消息的上述内容的一项或多项。
Process the quit message now that all pending messages have been handled.
创建消息的过程，就是填充消息的上述内容的一项或多项。
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