两个氢原子和一个氧原子结合组成一个水分子。
Two atoms of hydrogen combine with one atom of oxygen to form a molecule of water.
氢原子可熔合成氦。
水分子由两个氢原子和一个氧原子构成。
A molecule of water consists of two atoms of hydrogen and one atom of oxygen.
单个氢原子的能量是-1312 千焦每摩尔。
The energy for single hydrogen atom is negative 1312 kilojoules per mole.
他有一根装着电极的管子，里面充满了氢原子。通过施加电压，他能够使气体发光。
He had a tube with electrodes potted in it filled with atomic hydrogen. And by applying a voltage, he was able to get the gas to glow.
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。
There are just two hydrogen atoms per cubic centimeter on average in space, which poses no threat to spaceships traveling at low speeds.
在19世纪50年代的头几年，阿姆斯特朗，那时还在瑞典的乌普萨拉大学里，做了一个有关氢原子的实验。
In the early years of the 1850s, Armstrong, still at uppsala university in Sweden, conducted an experiment with hydrogen atoms.
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。
Most hydrogen and oxygen atoms in water are stable, but traces of both elements are also present as heavier isotopes.
这些链状或环状的碳原子被氢原子包围。
These are chains or rings of carbons atoms surrounded by hydrogen atoms.
氢原子，我们可以先画出原子电子。
然后我们从氢原子那得到了两个电子。
本质上，它只能允许我们,和两个氢原子成键。
Essentially it would only allow for us to bond to two hydrogen atoms.
我现在突然出现，我在这抬头看看然后离开，那就是氢原子。
I just burst in now, I look up there and go that's atomic hydrogen.
现在这是两个分别独立的氢原子。
这一切都发生在一个俘获反氢原子的磁瓶里。
All this happened inside a magnetic bottle that traps the antihydrogen atoms.
轰击氢原子可以与某一特定的频率产生共鸣: 1420兆赫。
Zap a hydrogen atom and it will resonate at a particular rate: 1420 megahertz (MHz).
用激光照射氢原子或反氢原子，观察何种波长的光线被吸收了，可以通过这种办法来详细地比较这两种原子的能级。
By shining laser light onto hydrogen or antihydrogen and observing which wavelengths are absorbed, the energy levels of the two can be compared in detail.
塑料中的碳原子呈饱和态，与两个氢原子相结合。
The carbon atoms in the plastic are saturated, having bonded with two hydrogen atoms.
而白矮星则是将其曾用作核燃料的所有氢原子都燃烧殆尽的恒星。
White dwarfs are stars that have burned up all of the hydrogen they once used as nuclear fuel.
那就是氢原子原子核外电子，最低轨道到情况。
That is the electron in its lowest orbit, to the nucleus of atomic hydrogen.
氢原子仍然过热，不能形成恒星，因此需要更多的膨胀。
The hydrogen was still too hot to form stars, so more expansion was needed.
波尔半径，对于氢原子来说是0。529埃。
在半重水的水分子中，一个氢原子（H）被一个称之为氘（D）的氢原子的同位素所取代。
In a semiheavy water molecule, one hydrogen atom (H) is replaced with a heftier version called deuterium (D).
让我们看一看氢原子。
这段时间内一些粒子聚合成反氢原子。
In that time some of the particles get together and form antihydrogen.
同时也是氢原子基态的能量值。
每个氢原子都有两个电子，这是一个令人满意的体系。
And so, each hydrogen has access to each electron, and now we have a satisfied system.
欧洲核子研究中心在过去的几个实验中都产生了反氢原子。
Antihydrogen atoms were produced in the past by several experiments at CERN.
采用具有微弱磁矩的强磁体是捕获反氢原子的关键。
A strong magnet was critical to trapping antihydrogen atoms by using their small magnetic moments.
采用具有微弱磁矩的强磁体是捕获反氢原子的关键。
A strong magnet was critical to trapping antihydrogen atoms by using their small magnetic moments.
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