2004年以来，联邦保险的反抵押住房贷款笔数已经增加了2倍多，去年达到了114,692笔之多。 它们最大的缺点是：交易费用极高。

Since 2004 the number of federally insured reverse mortgages has more than tripled, to 114,692 last year.

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结果表明，粒子数态光场诱导的原子激光总是反聚束的，相干态光场诱导的原子激光是任意阶相干的，而压缩相干态光场诱导的原子激光总是聚束的。

The results show that the atom lasers induced by light field in Fock state, coherent state, and squeezing coherent state are always anti-bunching, the nth-order coherent, and bunching, respectively.

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分析了来流马赫数、出口反压、攻角、高速旋转等因素对进气道流场结构及主要性能参数的影响。

And then the influence of the inlet flow's Mach, the outlet pressure, Angle, high velocity to the structure and major performance parameter of inlet's flow field are analyzed.

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All right, so the bonding order, you're correct, should be 2, if we subtract the number of bonding minus anti-bonding electrons and take that in 1/2.

好，你们是对的，键序为，如果我们用成键数,减去反键数除以2。

麻省理工公开课 - 化学原理课程节选

There are groups of people who have studied the impact of Trans fats on health for a number of years.

有些人已对反式脂肪,对健康的影响进行了数年的研究

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

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