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。
Due to the subtle error among different manufacturing equipment, the gate delay of circuits is different and varies in a given scope, which induces the time uncertainty of the waveform.
由于制造设备本身存在微小误差，具体门的延时并不相同，而是在一定范围内变化，引起波形变化的时间不确定。
Based on the mathematic model of CAN message delay time under the influence of the error frames, the primary impact on message delay time is analyzed.
结合CAN报文延迟时间在错误帧影响下的数学模型，分析了影响报文延迟时间的主要因素。
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