Water is a compound containing the elements of hydrogen and oxygen.

水是含有氢元素和氧元素的化合物。

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Data from a later mission indicates significant concentrations of hydrogen and by inference water less than a meter underground at both poles.

从后来的任务中得到的数据显示，在两极地下不到一米的地方有浓度相当高的氢，由此推断是水。

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Atoms of hydrogen are fused to make helium.

氢原子可熔合成氦。

《牛津词典》

It contains forms of hydrogen and oxygen that can mark, or label, these elements within body water.

VOA: special.2011.07.27

I'm going to write it like this three moles of hydrogen which is a gas one bar 100 degrees Celsius.

我会写成这样：,三摩尔氢分子，气体,1巴，100摄氏度。

麻省理工公开课 - 热力学与动力学课程节选

I'm not going to writegiven threemoles of hydrogen at one bar and three degrees, blah,bla I'm going to write it in a compact notation.

我不会写“给定1巴和多少度下,的三摩尔氢分子之类,我会把它写成一个紧凑的形式。

麻省理工公开课 - 热力学与动力学课程节选

How did two atoms of hydrogen wind up welded to a single atom of oxygen?

FORBES: The Story Of Eau

But for any car maker, the costs of the production and transportation of hydrogen are huge.

FORBES: European Entrepreneur Of The Week

Perhaps, he speculates, the explanation lies in entirely new and unanticipated kinds of hydrogen-carbon interaction.

ECONOMIST: Space-age soot