Most hydrogen and oxygen atoms in water are stable, but traces of both elements are also present as heavier isotopes.

在水中大多数氢原子和氧原子是稳定的，但这两个元素也有微量以较重的同位素形式存在。

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There is no doubt; tequila has the exact proportion of carbon, hydrogen and oxygen atoms necessary to form diamonds.

毋庸置疑，酒中有精确的形成钻石的碳氢氧比例。

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To produce the characteristic greenish glow, the energetic particles excite oxygen atoms at altitudes of 100 kilometers or more.

高能粒子激发100千米或更高处的氧原子，产生特有的绿色光辉。

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Water is made of one oxygen atom and two hydrogen atoms.

VOA: special.2009.09.30

We could also figure out the formal charges, and obviously the formal charges between these two atoms, they're going to be identical, we're only dealing with oxygen atoms here.

我们还可以把形式电荷算出来，显然这两个原子的形式电荷，应该是完全相同的，我们要处理的只有氧这一种原子。

麻省理工公开课 - 化学原理课程节选

There's absolutely nothing that tells us which atoms we should put it between, because they're both oxygen-oxygen.

我们没有任何理由把它们,放在其中一对原子中间，因为它们都是氧氧键。

麻省理工公开课 - 化学原理课程节选

The dots that make up the figures in the movie are the oxygen atoms in the molecule, Heinrich said.

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Here, they recombine with the protons, and also oxygen atoms, to make water.

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These free radicals are oxygen-rich molecules in which one of the oxygen atoms is particularly likely to react with other chemicals.

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