是不配对的核苷酸的浓度。

S is the concentration of unpaired nucleotides.

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结果表明，4.53%的细胞含有至少一对不配对的染色体，2.31%的细胞里，染色体偏离正常的数目。

The results showed that 4.53% of PMCs contained at least one unpaired of chromosomes and 2.31% of PMCs had a chromosome number deviating from their normal Numbers.

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由于这些不配对电子，这些分子或原子常具有高度的化学活性。

These unpaired electrons are the cause for the high chemical reactivity of free radicals.

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Why don't we give Philip both the matching pair and give you each a pair of socks since he didn't get to wear this one, they are brand new, in fact, and a big round of applause for what I'm sure is a little difficult.

我们为什么不给飞利浦一双配对的袜子,给你们每人一双袜子,他还没穿这双袜子，所以这双还算是全新的，再次以热烈的掌声对他们表示感谢,这样的模仿还是有一些难度的。

哈佛公开课 - 计算机科学课程节选