If you break the wave mid-way through, it will take a while for you to accurately perceive time again, which is precisely why they call it a 20 minute power nap.

如果慢波睡眠被打断了，要想重新准确地知觉时间，就得花上一会儿工夫。 这也正是为什么人们会把20分钟午觉称作“充电小睡“的原因。

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As the year's worst heat wave washes over China, media outlets vie to break the hot news.

着今年最大的一波热浪袭卷中国，新闻媒体争相报道这一 “热门”新闻。

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So, remember we can break up the total wave function into the radial part and the angular part.

记住我们可以把整体波函数，分解成径向部分和角向部分。

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so, remember we can break up the total wave function into the radial part and the angular part.

记住我们可以把整体波函数,分解成径向部分和角向部分。

麻省理工公开课 - 化学原理课程节选

I have yet to show you the solution to a wave function for the hydrogen atom, so let me do that here, and then we'll build back up to probability densities, and it turns out that if we're talking about any wave function, we can actually break it up into two components, which are called the radial wave function and angular wave function.

我还没有给你们看过,氢原子波函数的解，让我现在给你们看一下，然后再来说,概率密度，实际上,对于任何一个波函数来说，我们可以把它,分解为两部分，分别叫做径向波函数,和角向波函数。

麻省理工公开课 - 化学原理课程节选

The surfer, standing in the tube, or just in front of the break, slides down the wave like a skier, while the wave, and the buoyancy of the surfboard, bear him upwards and forwards.

ECONOMIST: On the beach

Second, they have shed light on something else originally studied by Dr Walker: the optimal speed of the break across the face of the wave.

ECONOMIST: On the beach

Because a surfer stays just ahead of the break, a wave that breaks very slowly carries him straight towards shore at only the speed of the wave.

ECONOMIST: On the beach