He mobilized public opinion all over the world against hydrogen-bomb tests.
他动员起世界各地的舆论，反对氢弹试验。
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。
Water contains hydrogen and oxygen.
水含有氢和氧。
Stars like our sun fuse hydrogen in their cores into helium.
太阳一类的恒星在其核心将氢聚变成氦。
The hydrogen gas could then be fed into a storage system and used to generate electricity when additional or backup power is needed.
然后可以将氢气输入到存储系统中，并在需要附加或备用电源时用于发电。
There are just two hydrogen atoms per cubic centimeter on average in space, which poses no threat to spaceships traveling at low speeds.
太空中平均每立方厘米只有两个氢原子，这对低速飞行的宇宙飞船不构成威胁。
By measuring the proportion of heavier hydrogen and oxygen isotopes along a strand of hair, scientists can construct a geographic timeline.
通过测量一束头发上较重的氢和氧同位素的比例，科学家可以构建一个地理时间轴。
Therefore some scientists postulate that the Earth's earliest atmosphere, unlike that of today, was dominated by hydrogen, methane, and ammonia.
因此，一些科学家推断，地球早期的大气与现在的不一样，主要由氢、甲烷和氨构成。
Heavy water is heavy because the hydrogen in it weighs twice as much as ordinary hydrogen (it has a proton and a neutron in its nucleus, instead of just a proton).
重水之所以重是因为水中氢的重量是普通氢的两倍（它的原子核中有一个质子和一个中子，而不仅仅是一个质子）。
In the long run, electricity from large wind farms in remote areas might be used to make hydrogen gas from water during periods when there is less than peak demand for electricity.
从长远来看，在电力需求低于峰值的时期，偏远地区的大型风力发电场的电力可能会被用于电解水，以产生氢气。
Its color is due to ionized hydrogen.
它炫目的色彩归功于电离氢。
Oxygen unites with hydrogen to form water.
氧与氢结合而成水。
Mainstream manufacturers are also getting interested in hydrogen.
主流汽车制造商们也对氢动力愈发感兴趣。
They are like the hydrogen and oxygen of the world of mathematics.
他们就像是数学世界的氢和氧一样。
The hydrogen propulsion system will be the key to Phantom Eye's success.
氢推进系统将是幻影眼成功的关键。
Too bad for the kids who want hydrogen balloons for their birthday parties!
这对在生日派对上想要氢气球的孩子们可真不是个好消息！
We're trying to modify photosynthesis to produce hydrogen directly from sunlight.
我们正尝试改进光合作用，以直接在阳光下制造出氢。
Hydrogen fuel cells work by combining hydrogen and oxygen to produce electricity.
氢燃料电池通过氢氧结合产生电能。
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？
When the universe was born, there was nothing but hydrogen, helium and a little lithium.
当宇宙诞生的时候，除了氢、氦和少量的锂元素之外，什么也没有。
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。
Instead the nebula glows with light from hydrogen gas being charged by the stars' radiation.
星云的光辉则是来自在恒星强烈辐射作用下带电的氢气。
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。
The discovery paves the way for an entirely new way to approach the hydrogen-storage problem.
这一发现为解决氢储存问题铺设了一条全新的道路。
Liquid metallic hydrogen is thought to exist in the high-gravity interiors of Jupiter and Saturn.
人们认为，液态的金属化氢可以存在于大质量行星，如木星、土星等的内部。
The presence of hydrogen in the soil, meanwhile, could provide a source of fuel for lunar visitors.
在土壤中存在的氢，将为月球的探访者带来燃料。
The presence of hydrogen in the soil, meanwhile, could provide a source of fuel for lunar visitors.
在土壤中存在的氢，将为月球的探访者带来燃料。
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