We're one step closer to being one equal nation."

VOA: standard.2010.03.03

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

They're not interacting at all so that's why the energy is the same as that for two individual atoms, that's what we're dealing with. As we get closer together, we start get lower and lower in energy.

它们之间没有任何相互作用，因此,体系的能量就等于两个分开的原子的能量，这就是我们要处理的，而随着我们的距离越来越近，我们的能量开始变得越来越低。

麻省理工公开课 - 化学原理课程节选

But now at least we're a step closer to doing something that's a little bit more compelling, but this isn't always a good thing.

但是现在至少是,向更引人入胜的代码靠近了一步，但这并不总是好事。

哈佛公开课 - 计算机科学课程节选

Then on Thursday we're going to start talking about how to manipulate DNA and get closer to using it in Biomedical Engineering.

周四我们会谈到如何,如何操控DNA并进一步,使之应用于生物医学工程领域内

耶鲁公开课 - 生物医学工程探索课程节选

So since we have two lone pairs, we're going to be pushing down even further on the bonding electrons, so we're going to smoosh those bonds even closer together.

因为我们有了两个孤对，我们会把成键电子,更加向下压，所以我们把这些键更加紧得推到一起。

麻省理工公开课 - 化学原理课程节选

So because we're feeling a stronger attractive force from the nucleus, we're actually pulling that electron in closer, which means that the probability squared of where the electron is going to be is actually a smaller radius.

因为我们能感到来自原子核,的更强的吸引力，我们实际上会将电子拉的更近，那意味着电子运动的,概率半径是,事实上是一个更小的半径。

麻省理工公开课 - 化学原理课程节选

That's the huge force that we're talking about in terms of making a bond stable, but there are also repulsive forces, so you can imagine we're going to have electron-electron repulsion between the two electrons if we're bringing them closer together.

正是这个非常强的力,使得我们所讨论的这个键能够稳定存在，但是其中还有排斥力存在，大家可以想象一下,我们会有电子与电子之间的排斥力,如果让它们离得更近。

麻省理工公开课 - 化学原理课程节选

For example, when we're talking about radial probability distributions, the most probable radius is closer into the nucleus than it is for the s orbital.

举例来说当我们讨论径向概率分布时,距离原子核最可能的半径是，比s轨道半径,更近的可以离原子核有多近。

麻省理工公开课 - 化学原理课程节选

And for the s electron, since it can get closer, what we're going to see is that s electrons are actually less shielded than the corresponding p electrons.

对于s电子，因为它可以离得更近，我们可以看到s电子事实上,相对于p电子受到,更少的屏蔽。

麻省理工公开课 - 化学原理课程节选

So again, what we see is the same pattern where the most probable radius, if we talk about it in terms of the d, that's going to be smaller then for the p, and the 3 p most probable radius is going to be closer to the nucleus than it is for the 3 s most probable radius that we're looking at.

同样的，我们可以看到相同的行为,ｄ轨道的，最可能半径，比ｐ轨道小，3p轨道的,最可能半径,比3s轨道离原子核更近。

麻省理工公开课 - 化学原理课程节选