ECG trigger-delay was accurately set to mid-diastolic "motion freezing" by observing the movement profile of RCA cross-points on four-chamber view individually.

心电触发延迟时间通过观察四腔心层面RCA断面的运动以确定准确的舒张中期冠状动脉显示“运动暂停”的间期；

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Remember that you need to press a letter key or keys to trigger the rocket motion; depending on your computer's speed, you might experience a slight delay before the rockets appear.

记住，您需要按一个或多个字母键来触发火箭运动；根据您的计算机的速度，您可能在火箭出现之前会感觉到一点延迟。

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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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On the other side are those who argue that the American deficit and debt are already in the red zone, and a further delay in cutting them could trigger a European-style debt crisis we cannot afford.

FORBES: The Fiscal Cliff: Three Lessons From Europe