But the recent rise in bond yields may indicate that this benign scenario is coming to an end.

但是最近债券利率的上涨可能显示这个良性的状况正在结束了。

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If the ECB were to end that bond buying program, Spanish debt would shoot well past that 7% threshold.

倘若欧洲央行终止这项债券购买计划，西班牙国债收益率将很快冲破7%的关口。

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Why not use the much-heralded stability fund as collateral for a European Brady bond plan that puts an end to the sovereign debt saga?

为什么不用被大肆宣扬的稳定基金作为抵押以实施欧洲布雷迪债券计划？这项计划终止了主权债务危机发生的可能性。

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Clearly, we put 2 for each bond, and now we end up having 2 remaining bonding electrons left.

显然，我们在每个键处放上两个电子，那么最后我们还剩下两个成键电子。

麻省理工公开课 - 化学原理课程节选

So, we see is when we use the octet rule to look at fluorine molecule, we're combining two fluorine atoms, and what we end up with is an f f molecule where they're sharing two electrons, so making that covalent bond.

那么，我们看到把八隅体规则用到氟分子上,就是把两个氟原子组合起来，最终得到的氟分子中两个原子,共用一对电子，这就构成了共价键。

麻省理工公开课 - 化学原理课程节选

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

Monthly dividend paying stocks can be an appropriate complement to other monthly-paying securities like closed-end bond funds.

FORBES: 5 Monthly Paying Dividend Stocks With Attractive Yields

But in most cases, I think I have a better chance at limiting risk (and ideally boosting returns) by sticking with open-end bond funds like DoubleLine Core Fixed Income (DLFNX), DoubleLine Total Return (DLTNX), Thompson Bond (THOPX), PIMCO Income (PONDX), and PIMCO Foreign Bond US Hedged (PFODX).

FORBES: Five Reasons Bond Funds Are Better Than ETFs

The four iShares index funds (see table below), issued by the Global Investors unit of Barclays (nyse: BCS - news - people ), sport a rock-bottom expense ratio of 0.15 versus open-end bond fund averages of around 1.00 and the 0.20 charged by low-cost leader Vanguard.

FORBES: Magazine Article