Precedence involves assigning a priority level to a call.

优先就是确定呼叫的优先权等级.

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Troy will mark the priority level for each item.

Troy标注出每一项的优先等级.

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Change of alarm status , which are right priority level.

报警状态变化, 且应是正确的优先级别.

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Use high priority level for monitor thread?

使用高优先级的监视器线程?

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