Because P and S waves travel at different but fairly constant speeds, the interval between their arrivals increases in proportion to the distance from the earthquake focus, or initial rupture point.

由于 P 波和 S 波以不同但相当恒定的速度传播，它们到达的间隔与到震源或初始破裂点的距离成比例地增加。

youdao

So, maybe my point, P, now, is here.

点P，现在在这。

youdao

Let's first look at the situation at point p.

首先请看点p的情形。

youdao

And our job is to find out what is the mathematical description of this path, this line in p-V's case that connects these two point.

我们的任务,就是找出，描述这条曲线的方程。

麻省理工公开课 - 热力学与动力学课程节选

Let's just suppose, as seems likely, that none of the P-functioning is occurring, at some point during sleep.

我们就这样设想一下，在睡眠的某个时间点上，没有任何人格功能性。

耶鲁公开课 - 死亡课程节选

z And what you need to remember is if the z 8 is equal to eight or greater, such as oxygen being the cut-off point, this sigma 2 p orbital is actually lower in energy than the pi 2 p orbitals, the molecular orbitals.

你们要记住如果,等于或者大于，就像O是分界点，这时sigma2p轨道,比π2p轨道能量更低。

麻省理工公开课 - 化学原理课程节选

H-P deemed this sum "not material, " which is beside the point.

WSJ: Common Sense: Hewlett-Packard Still Can't Handle the Truth