And when we talk about covalent bonds, there's 2 properties that we'll mostly focus on, and that's going to be thinking about the bond strength or the energy by which it stabilized when it bonds.

而当我们讨论共价键的时候，有两点特性是我们最关注的，那就是键的强度,或者说成键之后能量降低了多少。

麻省理工公开课 - 化学原理课程节选

Bond allocations had increased by more than could be explained by the increase in bond prices over the course of the year.

同时资产配置中的债券投资比重,以高于当年债券价格上涨的速度,有了显著增加

耶鲁公开课 - 金融市场课程节选

Since that time, PES we've been able to actually measure these bond strengths by PES, photoelectron spectroscopy.

自从那时，我们就能够用,测量键的强度，光电子能谱。

麻省理工公开课 - 固态化学导论课程节选

So, in fact, yes, we did confirm that these covalent bond, at least in the case of hydrogen, we have confirmed by the numbers that we are at a lower energy state when we talk about the bonded atom versus the individual atom.

因此，事实上，是的，我们证实了共价键，至少在氢这种情况下，我们通过数据证实了,成键的原子处于能量更低的状态,当其与单个的原子相对比时。

麻省理工公开课 - 化学原理课程节选

So I show that here, so in green, you have what's called a carboxcylic acid group, a c o o h, which gets converted by s o c l 2 to a c double bond o c l or an acid chloride.

我在这里用绿色表示，我们所说的羧酸族化合物，碳，氧，氧，氢，它被亚硫酰氯转化为,一个碳氧双键与碳氯单键组成的酰氯。

麻省理工公开课 - 化学原理课程节选

In my final slide is a picture of the first indexed bond; this is issued by the State of Massachusetts I actually own this bond.

最后一张幻灯片是,第一支物价指数债券的照片,这是麻省州政府发行的,其实我收藏了这张债券

耶鲁公开课 - 金融市场课程节选

Well, there's a formula that's been used by bond traders for hundreds of years and it's a traditional expression, which goes from the discount rate to the price.

这里有个债券交易商,用了上百年的公式,这是个传统表达式,它能用折扣率算得价格

耶鲁公开课 - 金融市场课程节选

If stock prices went down-- by the way, bond prices went up.

当股价下跌,顺便提一下,债券价格会上涨

耶鲁公开课 - 金融市场课程节选

If you have a bond with an interest rate of 4.375% -that's not an easy one to divide by two but you would get half of that every six months until maturity.

如果你持有一种利率为4.375%的债券,这个数除以2有点难算,而在债券到期前,每半年你能得到4.375%一半的券息

耶鲁公开课 - 金融市场课程节选

The shortest term debt instrument in the United States is the Federal Funds Rate, which is an overnight rate--one day maturity-- and the longest issued by the Government is a thirty-year government bond, which will be repaid three decades in the future.

美国最短期的债券,是联邦基金利率,隔夜拆兑,一天到期,而时间最长的国债,是一种三十年期的政府债券,未来三十年才兑现

耶鲁公开课 - 金融市场课程节选