add to trigger queue 增长到被触动引发器行列步队
Each object in the queue may trigger special processing if the object fulfills specific conditions.
队列中的每个对象如果满足指定条件，就可能触发特殊处理。
Recall that the queue was set to trigger at 900 messages.
如前所述，队列被设置为在达到 900 条消息时触发。
If you enable triggering on the queue, a trigger immediately fires and the queue is reset back to NOTRIGGER again.
如果您在队列上启用触发机制，一个触发器将立即触发，然后，队列再次被重置为NOTRIGGER。
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