Now imagine that the chasing pulse is itself being chased, but again by a much weaker pulse.

现在想像一下追逐脉冲本身又被一个弱很多的脉冲追逐。

youdao

When the conventional pacemaker generates a pulse to pace the right hand side of the heart, this is detected by the pulse-generator and a pulse is sent to stimulate the left hand side of the heart.

当这个传统起搏器产生脉冲对右侧房室进行调节时，脉冲发生器会检测到这一动作，并发射一束脉冲用以刺激左侧房室。

youdao

Light in the vicinity of the pulse is slowed more and more when the refractive index changes as the pulse passes by.

随着脉冲经过，折射率发生改变，靠近脉冲的光速度越来越慢。

youdao

We were talking about the subdivision of that pulse, the organizing of that pulse into meters, and that we had this capacity to indicate what the meter was by these numbers: two-four, and three-four for duple and triple meter.

我们还讲到律动的进一步划分,将律动组织成拍子,与此同时我们能够用一些数字,来表示不同的拍子,比如,用二四拍和三四拍表示二拍子和三拍子

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