What these do is they insure the bond-- they insure the investor against the municipality failing to pay on the bond.

他们的业务是为市政债券保险,他们确保政府当局,有能力向投资者进行赔付

耶鲁公开课 - 金融市场课程节选

And to do this we're going to introduce valence bond theory, and the idea of hybridization of orbitals.

在这之前我们要引入价电子成键理论，和杂化轨道的概念。

麻省理工公开课 - 化学原理课程节选

With an indexed bond you don't have to do this calculation to get the real rate.

对于物价指数债券,你无需,通过以上计算得到实际利率

耶鲁公开课 - 金融市场课程节选

/2 So this would mean the bond order is equal to 1/2, and in terms of valence electrons, how many bonding valence electrons do we have?

这意味着键序等于，对于价电子，有多少个成键价电子？

麻省理工公开课 - 化学原理课程节选

Because if we think about wave behavior of electrons and we're forming bonds, then what we have to do is have constructive interference of 2 different electrons, right, to form a bond, we want to and together those probabilities.

如果我们考虑,电子的波动行为,并且，我们要成键的话,我们要,把，这些概率，加在一起,如果。

麻省理工公开课 - 化学原理课程节选

Well, in '26, the-- i've shorted the one-period bond and so I have to pay out one dollar, but that's exactly what I wanted to do.

6年 我卖空的一年期债券到期了,我需要偿还一美元,不过这恰是我要做的

耶鲁公开课 - 金融市场课程节选

What you could do hundreds of years ago-- and can still do it today-- was go to a bank and present this bond or IOU and say, "What will you give me for it?"

在数百年前你们能做的,在今天还是能够做到的就是,到银行出示这份合约或欠条,问,你们根据它能给我多少钱

耶鲁公开课 - 金融市场课程节选

N 2 So any chemist should be able to just look at n 2 and know that it's a triple bond, but that's not something that we've learned how did to do yet, so let's go ahead and start a new topic that's going to allow us to have some sort of sense of what the valence electron configuration, which includes whether something's a single or double or a triple bond can be figured out for any given molecule.

任何一个化学家都应该能够仅仅通过看到2,就知道它有一个三键,但是我们还没学习如何做到这点，因此下面我们就开始进入一个新的主题,它将使我们能够有一定的认识,对于价电子的排布情况，包括可以对任何一个给定分子中的键是单键双键,还是三键作出判断。

麻省理工公开课 - 化学原理课程节选