The graph to the left, this is the s orbital, symmetric.

在左边的图是对称的S轨道，对称的。

youdao

And yet, we know that the shape of the s orbital is spherical.

并且，我们知道S轨道是球状的。

youdao

If you compare the s orbital with the bottom lobe, these have a different sign so they're going to destructively interfere.

如果你们比较s轨道和下面这叶，它们正负号相反，所以它们相消干涉。

youdao

So, if I kind of circle where the probability gets somewhat substantial here, you can see we're much closer to the nucleus at the s orbital than we are for the p, then when we are for the d.

我把概率,很大的地方圈出来，你们可以看到在ｓ轨道上,比ｐ轨道更接近原子核，最远是ｄ轨道。

麻省理工公开课 - 化学原理课程节选

So the most basic answer that doesn't explain why is just to say well, the s orbital is lower in energy than the p orbital, but we now have a more complete answer, so we can actually describe why that is.

所以最基本的答案是那没有解释,所以我们事实上可以描述，为什么是那样，但是我们现在有一个更复杂的答案，又是有效电荷量。

麻省理工公开课 - 化学原理课程节选

And yet, we know that the shape of the s orbital is spherical.

并且，我们知道S轨道是球状的。

麻省理工公开课 - 固态化学导论课程节选

Despite the initiative's youth, Buckley said the CIHR is excited about gaining more access to the station's orbital laboratory, where health research is performed by space residents.

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This appears to be the mindset of the Air Force regarding its experimental X-37B space plane, the billion-dollar robotic vehicle's orbital flight being extended beyond the 270 days it was initially designed for.

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The team managed to show that Einstein's theory could give the correct orbital behaviour of the binary orbit.

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