"We're here because we're Jerusalemites. This is our city as much as anybody else's."

VOA: standard.2010.07.29

Because here what we have is some atom that we're studying, in the case, it's going to be a gas, and we hit it with a photon that has some incident energy.

因为这里我们要研究的是一些原子,在这种情况下，一般是气态的，然后我们令一个,具有一定初始能量的光子打上去。

麻省理工公开课 - 化学原理课程节选

So, this makes this chart shown in pink make a lot more sense, because if we're way out at very far distances, essentially what we have here is we're talking about two separate atoms.

因此综合考虑这些因素可以发现这条粉红色曲线很合理，因为如果我们离得非常远，本质上来说,我们讨论的就是两个分开的原子。

麻省理工公开课 - 化学原理课程节选

"Everybody used that picture as a motivational tool of why we're truly here, because regardless of what's going on and how devastating it is, there are still people that recognize and believe that the Comfort is here to help them."

VOA: standard.2010.03.26

And I found that that increases their knowledge and understanding of actually what the company does tremendously, because somebody comes in, presents for an hour, "Here's what we're doing in China."

我发现,这在很大程度上增加了,他们对公司的认识，因为某位董事会做一个小时陈述，这是我们在中国的业务“

斯坦福公开课 - 戴尔CEO-Michael.Dell谈创业和发展课程节选

"Our effort here in writing this letter is just urging caution because we're hoping that with the new administration, we will have an administration that will lend itself more to diplomacy and working through other means rather than always military confrontation,".

VOA: standard.2009.03.17

We're going to be talking about these in finance in regards to returns because-- generally the idea here is that we want high returns.

接下来我们讨论它们在金融学中的应用,从收益的角度来说,一般我们都渴望高收益

耶鲁公开课 - 金融市场课程节选

We're going to see them both capitalized because I've made a newbie mistake here.

我们看到它们两个都是大写的,因为我们犯了一个新的错误。

哈佛公开课 - 计算机科学课程节选

Now, as we know, and by the way we're not going to write a perfect simulation here, because we're going to try and do it in 40 minutes, or 30 minutes.

现在u，我们知道，我们并不是要写一个,完美的仿真程序，因为我们得,在40或者30分钟内完成它。

麻省理工公开课 - 计算机科学及编程导论课程节选

It's 109 . 5 is what we would expect for methane because it's tetravalent, but here we're just seeing something that's divalent, and they're both in p orbitals that are perpendicular to each other.

因为甲烷是四价的，我们预测是109。,但这里我们，看到的是二价的，它们都在。

麻省理工公开课 - 化学原理课程节选

so it's important to note that it's not in b, now we're talking about b plus, because we've already taken an electron out here.

其中有一个非常重要的地方需要注意，不是硼，而是正一价硼离子，因为我们已经拿走了一个电子了。

麻省理工公开课 - 化学原理课程节选

I set up a theoretical framework here ... and I wanted to give you-- I mentioned oil because it seems to make it, to me, so clear what we're talking about here.

我建立了个理论框架,然后我想讲给你们听-,我之前提到石油是因为它适用于这个框架，非常清晰阐述我们所谈到的内容。

耶鲁公开课 - 金融市场课程节选

So, that's sort of the mathematically how we get to a, but we can also just look at the graph here, because every time we go one wavelength we can see that we're back in a maximum.

这是就我们得到a的数学,办法，但我们可以直接,从图上看，因为每次我们,经过一个波长，都回到一个最大值。

麻省理工公开课 - 化学原理课程节选

But it doesn't actually cost as much energy as you might think, because in this s orbital here we have a paired electron situation where we're moving up to a p orbital where the electron is no longer paired, so it won't feel quite as much electron repulsion, but nonetheless, this is going to cost us energy.

但它消耗的并没有,你们想象的那么多,因为s轨道里我们电子是配对的,当我们把，电子移到p轨道,电子不再配对，所以它不会感受到那么多的电子排斥，但尽管如此，这个过程还是要消耗能量的。

麻省理工公开课 - 化学原理课程节选

And again, this is between the p orbitals, these are not hybrid orbitals, so when we name this bond we're going to name it as a pi bond here, because it's between two p orbitals, and it's going to be between the carbon 2 p y orbital, and the other carbon 2 p y orbital.

同样，这是在p轨道之间的，它们不是杂化轨道，所以当我们命名这个键时,我们要命名它为π键，因为它在两个p轨道之间，而且是在碳2py轨道，和另一个碳2py轨道之间。

麻省理工公开课 - 化学原理课程节选

But instead in this chemistry course, I will just tell you the solutions to differential equations. And what we can do is we can start with some initial value of r, and here I write r being ten angstroms. That's a good approximation when we're talking about atoms because that's about the size of and atom.

但在这个课里，我会直接，告诉你们微分方程的解,我们可以给距离r一个初始值,我这里把r取10埃,当我们讨论原子时,这是一个很好的近似,因为原子的尺寸。

麻省理工公开课 - 化学原理课程节选

So essentially, each of these orbitals come from linear combinations of all of the original orbitals, and it's hard to picture exactly how that happens, but one that you can at least start to get an idea is if you think about combining the 2 s and the 2 p z here, which is not quite accurate because of course, we're combining all of them.

本质上，这些轨道每个都来,自原来所有轨道的线性组合，我们很难想象这是怎么发生的，但你们可以至少有个概念,如果你们考虑2s和2pz轨道的结合，这当然是不太准确的，因为我们要把所有的都组合起来。

麻省理工公开课 - 化学原理课程节选