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。
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。
Atoms of hydrogen are fused to make helium.
氢原子可熔合成氦。
A molecule of water consists of two atoms of hydrogen and one atom of oxygen.
水分子由两个氢原子和一个氧原子构成。
Two atoms of hydrogen combine with one atom of oxygen to form a molecule of water.
两个氢原子和一个氧原子结合组成一个水分子。
The Jovian planets have very thick atmospheres consisting of varying amounts of hydrogen, helium, methane, and ammonia.
木星的行星有非常厚的大气层，且由不同数量的氢、氦、甲烷和氨等元素组成。
Toyota says its fuel cell car FCHV-adv can travel 515 miles on a full tank of hydrogen, but it may not see mass production until 2016.
丰田公司说他们的燃料电池汽车FCHV-adv 装满一箱氢气能行驶820千米，但在2016年前可能不会投入量产。
Water is composed of hydrogen and oxygen.
水由氢与氧化合而成。
The enormous abundance of hydrogen is almost certainly not real.
氢气的大量存在这一说法，不是真的。
There were also explosions caused by a build-up of hydrogen gas.
还有一些因氢气积聚而引起的爆炸。
Two types, or isotopes, of hydrogen are used - deuterium and tritium.
它使用两种类型，或称同位素，的氢——氘和氚。
This geological process created complex molecules of hydrogen and carbon.
这种地质作用形成复杂的碳氢分子。
The question then arose, would it satisfactorily explain the spectrum of hydrogen?
于是问题升级了：它是否能够令人满意地解释氢原子光谱？
It contains a tiny pellet of fuel made from an isotope of hydrogen called deuterium.
其中放置了一个更微小的氘(氢的一种同位素)燃料丸。
But the promise of hydrogen-powered personal transport seems as elusive as ever.
但是氢动力个人交通工具的前景看起来和以往一样扑朔迷离。
Just like most other stars, the sun is made up mostly of hydrogen, followed by helium.
就像大部分其它恒星一样，太阳主要由氢构成，其次是氦。
Which splits waterinto oxygen and the constituents of hydrogen, a proton and electron.
催化剂会把水分解成氧气和氢原子的构成部分：一个质子和一个电子。
Which splits water into oxygen and the constituents of hydrogen, a proton and electron.
催化剂会把水分解成氧气和氢原子的构成部分：一个质子和一个电子。
So let's draw the electron configuration of hydrogen, the molecule, molecular hydrogen.
让我们来画氢原子的，电子构型，分子，氢分子。
Among this group, most of those with traces of heavy elements also have traces of hydrogen.
这类白矮星中有着重元素痕迹者，大多也会有氢的痕迹。
Like its bigger neighbor Jupiter, Saturn is a gas planet made mostly of hydrogen and helium.
就像比它更大的邻居-木星一样，土星也是气体行星，主要由氢和氦所组成。
Having said that, we suspect that this new planet is made mostly of hydrogen and helium gas.
这样说来，我们猜测这可新发现的行星主要由氢气和氦气组成。
It is a naturally occurring radioactive form of hydrogen, sometimes known as heavy hydrogen.
氚是氢的放射性形式，有时被称作超重氢。
The advantage of hydrogen is its unrivalled simplicity: one electron circles a single proton.
氢的优势是其结构非常简单：一个电子环绕一个质子。
Where you have water ice, you have a potential mother lode for lunar prospecting of hydrogen.
存在水冰的地方都存在着一个月球氢勘探的矿脉。
The expected amount of hydrogen loss matches the net excess of oxidized material on Earth today.
科学家估算出的氢气总逃逸量与地球今天氧化物的净剩馀量刚好相吻合。
When the universe emerged from the Big Bang, it consisted almost entirely of hydrogen and helium.
当宇宙最初从大爆炸中诞生时，整个世界基本上就是由氢和氦组成的。
It is a very sensitive indicator of hydrogen levels - and where there is hydrogen, there is water.
这是一个非常敏感的氢浓度指标—哪里有氯，哪里就有水。
Until now, experiments have produced anti-atoms, namely of hydrogen, but only in a free state.
直到现在以前，实验中已经制造出了反原子，即反氢原子，但是只是在自由态下。
Until now, experiments have produced anti-atoms, namely of hydrogen, but only in a free state.
直到现在以前，实验中已经制造出了反原子，即反氢原子，但是只是在自由态下。
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