If the delta is ever negative, consider that an error, as you should never get an item from the queue with an earlier trigger time, when the delay has ended.

如果时间差是负数，可以视为一个错误，因为永远不会在延迟时间结束后，在一个更早的触发时间从队列中取得项。

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The results indicate that, delay time reflect transformation of sleep stages, and it's value is negative correlative with EEG's complexity and brain's activity.

结果表明，延迟时间反映了睡眠时相的差别，其大小与脑电复杂性和大脑的活跃程度负相关。

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The negative Doppler effect will limits the power to an acceptable level during the time delay for protective action.

多普勒负反应性反馈效应能在保护动作延迟的时间内将功率限制在可接受的水平。

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