So we know that it's 1, because we have 1, 2, 3, 4 bonding, minus 2 anti-bonding, and 1/2 of that is a bond order of 1.

我们知道它是，因为我们有1，2，3，4个成键，减去2个反键，它的一半就是键序为1。

麻省理工公开课 - 化学原理课程节选

So, if a bond was issued when interest rates were lower, they might have a 4% coupon when the prevailing rate is 6%.

所以，如果一只债券在利率很低的时候发行，在汇率为6%的的时候，它们可能有一个4%的票息。

耶鲁公开课 - 金融市场课程节选

So for the bond order we want to take 1/2 of the total number of bonding electrons, so that's going to be 4 minus anti-bonding is 4, so we end up getting a bond order that's equal to 0.

键序等于1/2乘以,总的成键电子数，也就是4，减去反键电子数，也就是4。,所以最后得到键序为0。

麻省理工公开课 - 化学原理课程节选

Well, you go look in your table So, if I had to guess, 4 what would you guess the bond energy would be in HF?

在你的表格里也有,如果让我们来猜猜，你会猜HF的键能是多少呢？

麻省理工公开课 - 固态化学导论课程节选

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