借助OH夜气辉辐射的光化学模式，由OH夜气辉辐射反演中间层-低热层区域的原子氧数密度时，输入参数的不确定性将导致反演得到的原子氧数密度具有不确定性。
When the atomic oxygen density in the mesosphere and lower thermosphere region is derived by means of photochemical model calculations from OH nightglow emissions, a retrieval uncertainty, I.
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).
那么，我们可以说--如果我们这里有氖原子,而我们想知道与它等电子的是什么，负一价的氟离子就是与它等电子的，我们还有氧-,氧应该是几价的？
So, we can say that -- if we have neon here and we want to think about what's isoelectronic, -- f minus would be isoelectronic. We also have oxygen -- what would the charge on oxygen be?
和乙醇一样，丁醇也属于醇类，这说明每一个丁醇分子包括一个氧原子和直链烷烃里的那种碳原子、氢原子。
Like ethanol, butanol is an alcohol. That means each of its molecules contains an oxygen atom as well as the carbon and hydrogen found in an alkane.
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.
例如，葡萄糖氧化酶是葡萄糖变成过氧化氢的催化剂，在催化过程中包括一个完整氧原子的量子隧穿。
For example, the enzyme glucose oxidase, which catalyses the reaction of glucose into hydrogen peroxide, involves the quantum tunneling of an entire oxygen atom.
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.
窄带滤波器的数据追踪的是星云中的原子，硫原子发出红光、氢原子放出绿光，而氧原子呈现蓝光。
The narrow band data traces atoms in the nebula, with emission from sulfur atoms in red, hydrogen atoms in green, and oxygen in blue.
在这个过程中，太阳粒子会同地球大气中的氮原子和氧原子撞击并发出光芒，从而制造出类似于微型霓虹灯效果的极光。
In the process, the particles collide with atoms of nitrogen and oxygen in the Earth's atmosphere, which then glow, creating an effect similar to miniature neon signs.
它主要由电离氢分子和氦构成，同时还包括碳、氧、氮和其他原子，使得其呈现纷繁的混合色彩。
It is mostly made of ionized hydrogen and helium, though carbon, oxygen, nitrogen and other atoms are present, producing the complex color blend visible here.
图中包括了使用对氧原子放射物敏感的过滤器记录的窄频带图像，以蓝绿色表示，而氢原子以红色表示。
It includes narrowband images recorded using filters sensitive to emission from oxygen atoms, shown in blue-green hues, and hydrogen atoms in red.
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.
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.
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.
当你在烧氢类燃料(如石油)时，燃料中的氢原子和碳原子与空气中的氧结合反应，生成了二氧化碳和水。
When you burn a hydrocarbon fuel such as oil, its hydrogen and carbon atoms combine with oxygen from the atmosphere to create water and carbon dioxide.
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.
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.
脂肪酸和醇类很相似，它有着大量的氢原子和碳原子，以及数量很少的氧原子(它还有两个氧原子而非一个)。
Like alcohols, fatty acids are molecules that have lots of hydrogen and carbon atoms, and a small amount of oxygen (in their case two oxygen atoms, rather than one).
极光的出现缘于太阳风离子与高层大气中的氧氮原子的碰撞。
Auroras happen when ions in the solar wind collide with atoms of oxygen and nitrogen in the upper atmosphere.
但他们发现，即使将火焰熄灭，仍可以获得一个信号——换句话说，就是激光在激发氧原子的同时也分成了两束。
But what they noticed was that even when they turned the flame off they were still getting a signal - in other words, the laser was breaking up as well as exciting the oxygen.
这是因为我们看到的是由氧原子在较低的天空形成的光线秀。距离地面约为62 ~ 186英里(100 ~ 300公里)。
That's because the eye sees a light show created by oxygen atoms at lower altitudes, about 62 to 186 miles (100 to 300 kilometers) above the surface.
碳原子和两个氧原子相结合组成了二氧化碳，是数十亿年来保持我们地球温度的重要温室气体。但是近些年来由于人类的活动，地球温度不断上升，导致温度过高。
Bound to two atoms of oxygen, it creates carbon dioxide, the chief greenhouse gas that has kept our planet warm for billions of years - and is now, thanks to human activity, making us too warm.
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?
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.
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.
最常检测到的化学化合物是(HOH)，氧(O)是它的一个原子。
The most frequently detected chemical compound is water (HOH) with oxygen (o) as one of its atoms.
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.
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.
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.
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