如上所述，如果消息描述符是V 1, MQMDE结构由队列管理器添加。
As discussed above, an MQMDE structure is added by the queue manager if the message descriptor is V1.
为了允许mdb发送响应，包含该MDB的EJB模块的部署描述符必须定义对连接工厂和应答队列的资源引用。
To allow the MDB to send the response, the deployment descriptor for the EJB module containing the MDB must define resource references for the connection factory and reply queue.
管道由一个队列和两个文件描述符(一个用于数据入列，另一个用于数据出列)组成。
A pipe is composed of a queue and two file descriptors-one to enqueue data and the other to dequeue data.
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