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。

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Both P and S waves refract or reflect at points where layers of differing physical properties meet.

和S波都在具有不同物理性质的地层相遇处折射或者反射。

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And researchers found that P waves travel through both liquids and solids while s waves travel only through solid matter.

研究者发现P波可以同时穿过液体和固体，但是S波只能穿透固体。

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Cornell honors Cayuga Lake in its school song, which begins: "Far above Cayuga's waters With its waves of blue Stands our noble alma mater Glorious to view."

VOA: special.2009.01.05

see people with them, and what happens here is it's supposed to be those noise cancellation headphones. All they do is they take in the ambient noise that's around it, and there's actually battery in the headphones, that then produces waves that are going to destructively interfere with that ambient noise.

我从来没有用过这个,但你会看到有人带他们,它们可以作为消噪音耳机,它们所做的就是采入,周围的随机噪声，耳机里面是，有电池的，然后它能产生和,随机噪声相干相消的声波。

麻省理工公开课 - 化学原理课程节选

But we can use equations that describe waves to describe matter, and that's what we're going to be doing today.

但我们可以用描述波的方程,来描述物质，这就是我们今天要做的。

麻省理工公开课 - 化学原理课程节选

They do not use fuel but instead convert energy from the ocean's waves, turning it into forward thrust.

BBC: PacX Wave Glide

On Monday night, Sandy's waves ripped out the entire deck of his home, along with the back wall.

WSJ: Superstorm Sandy Cuts Wide Swath of Damage

In the wake of Sunday's waves, there have been calls to set up a system that would monitor the Indian Ocean for undersea quakes and alert the countries around its rim.

ECONOMIST: Deluged without warning | The