These compounds include an ester bond making them sensitive to deactivation by esterases.

这些化合物包括使其对由酯酶引起的失活敏感的酯键。

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Bond insurers, who used to cover roughly half of the market, have retrenched or gone bust after making bad mortgage bets.

过去保险几乎一半市场的债券保险公司在经历错误的抵押贷款赌注后已经削减或破产。

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In other words, they flipped a switch, which allowed them to change the electrical conductivity of the silicon without making or breaking a single chemical bond within the surface.

或者说，他们扳动了一个开关，改变了硅的电导率，而不需破坏表面上的任何化学键。

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That's the huge force that we're talking about in terms of making a bond stable, but there are also repulsive forces, so you can imagine we're going to have electron-electron repulsion between the two electrons if we're bringing them closer together.

正是这个非常强的力,使得我们所讨论的这个键能够稳定存在，但是其中还有排斥力存在，大家可以想象一下,我们会有电子与电子之间的排斥力,如果让它们离得更近。

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

But making bond trading transparent is easier said than done, as recent events in Canada have made clear.

ECONOMIST: Bond trading

The underlying complaint is that speculators drive up bond yields, making it harder for governments to finance themselves.

ECONOMIST: Buttonwood: The war on finance | The

So, you may be thinking, you could hedge your U.S. bond portfolio by making a side bet against the dollar in the foreign exchange market.

FORBES: Six Ways to Inflation-Proof Your Bonds