每个通道都有两个端点：在起始队列管理器内定义的发送端(sender)通道和在目的队列管理器内定义的接收端(receiver)通道，如图4中所示。

Each channel has two ends: a sender channel that is defined within the originating queue manager, and a receiver channel that is defined within the destination queue manager, as shown in Figure 4.

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触发机制的目的是允许队列管理器基于消息的到达启动外部动作。

The purpose of triggering is to enable the queue manager to initiate external actions based on the arrival of messages.

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例如，可在这里指定目的类型(队列或主题)。

For example, destination type (queue or topic) can be specified here.

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