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.
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.
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.
它在氧原子之后，因为它很小。
其余的水分子变成仍有用的一对氧原子。
the rest of the water molecule becomes a pair of hydrogen atoms, which is also useful).
一个例子可以是，嗯，对，我们看下氧原子。
An example of that might be, oh, let's look at something like oxygen.
氢和氧原子可能在重量上多少有点变化。
一对氧原子在催化剂上结合使其成为氧气分子。
The catalyst then knits pairs of oxygens together to make O2.
氧原子有轻微的负电荷，而氢原子则带对应的正电荷。
The oxygen atom has a slight negative charge while thehydrogen atoms share a compensating positive charge.
氧气是双原子分子，即每个氧分子由两个氧原子构成。
The kind that we breathe is made of diatomic molecules, which means each molecule has two atoms.
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。
To produce the characteristic greenish glow, the energetic particles excite oxygen atoms at altitudes of 100 kilometers or more.
如果两个氢原子与一个氧原子结合，就可以得到一个水分子。
Combining two atoms of hydrogen with one of oxygen, you will get a molecule of water.
氮16是来自堆芯的高速中子在周围的冷却水中撞击氧原子的时候产生的。
It is made when speeding neutrons from the reactor's core hit oxygen in the surrounding cooling water.
这个特征就是氧的同位素，它是由氧原子和不同数量的中子组成的。
That water signature is in the form of oxygen isotopes, atoms of oxygen with different Numbers of neutrons.
在这种情况下，每个氧原子都有六个价电子，因此我们总共有十八个价电子。
In this case, 6 valence electrons for each oxygen, so we have 18 total valence electrons.
某些分子或者某个氧原子，位于屋子的某处，处于某个能量状态的，概率是多少？
And what's the probability that some molecule, one of the oxygen molecules somewhere in this room, is in a certain energy state. Right?
比如，绿色北极光源自于60到120英里(100到200公里)高的氧原子的碰撞。
For example, the green aurora pictured was the result of oxygen-atom collisions about 60 to 120 miles (100 to 200 kilometers) up.
IBEX还产生了第一张从外部空间进入太阳系的中性氢原子和氧原子的地图。
IBEX has also generated the first maps of neutral hydrogen and oxygen atoms entering the solar system from interstellar space.
画它的骨架结构很容易，因为它们都是氧原子，我们不需要担心哪个原子在中间的问题。
It's easy to write the skeletal structure, because it's all oxygen, we don't have to worry about what's going to go in the middle.
尽管加热这种材料的时候，氧原子被驱赶出结构中，剩下带电的泡沫使材料表现得像金属一样。
Heat the material, though, and some of the oxygen is driven out of the structure, leaving electrically charged bubbles that make the material behave like a metal.
这个反应是需要水分子的，且氧原子是来自水分子；其余的水分子变成仍有用的一对氧原子。
(the reaction takes place with water molecules, and the oxygen comes from the water; the rest of the water molecule becomes a pair of hydrogen atoms, which is also useful).
发生的事是这样的：在纯净的一个钛和两个氧原子组成的重复单位下，二氧化钛是一种半导体。
What was happening was this: in its pure state of repeating units of one titanium and two oxygen atoms, titanium dioxide is a semiconductor.
当这些表面和磁铁矿一接触，氧原子就能从石英砂转移到磁铁矿，形成了一种新的矿物，赤铁矿。
When these surfaces came into contact with the magnetite, an oxygen atom could be transferred from quartz to magnetite, forming a new mineral, hematite.
平流层大气包含臭氧层，臭氧层由紫外线照射导致的三个氧原子结合成的臭氧分子组成。
The still air of the stratosphere contains the ozone layer, which was created when ultraviolet light caused trios of oxygen atoms to bind together into ozone molecules.
在高强度下，这种聚焦会使氧原子的粒子束反转，确保了激发的原子多于未被激发的原子。
Being very high intensity, this focus induces a population inversion in the oxygen atoms, ensuring that there are more excited than non-excited atoms.
任何一种简单醇类都是有大量的碳分子和氢分子(如同碳氢化合物，譬如汽油)以及单个氧原子组成。
Any simple alcohol is composed of a number of carbon and hydrogen atoms (like a hydrocarbon such as petrol) together with a single oxygen atom.
这个多出来的氧原子致使臭氧的性质与它的氧气亲戚截然不同——臭氧有毒，且稳定性更高。
This extra atom makes ozone behave differently than typical oxygen. Ozone is both poisonous and protective.
当热室经太阳能加热，达到2 700度的高温时，铁氧化合材料部件中部分氧原子发生逃逸。
Solar energy heats the hot chamber to a scorching 2,700 degrees, hot enough to force the iron oxide composite to lose oxygen atoms.
能源和水之间的联系并非常常如此明显，这两者就好比交织在一瓶依云水里面的氧原子和氢原子。
The link between energy and water is not always apparent, but the two are as intertwined as the hydrogen and oxygen atoms in a bottle of Evian.
但是在高铁酸盐中(是铁原子、氧原子以及非过渡金属如纳原子、钙原子的化合物)，它失去了6个电子。
But in ferrates, which are compounds of iron and oxygen with non-transition metals like sodium and calcium, it loses six.
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