The ammonia oxidation test was made under the mixed atmosphere of NO2/O2. Ammonia oxidizer could use NO2 as electron acceptor to oxidize ammonia and produce NO when there was no molecule oxygen.
在NO2/O2混合气氛下进行氨氧化试验，结果表明，无分子氧时，氨氧化菌能以NO2为电子受体氧化氨，并产生NO；
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。
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。
The simplest light-producing reactions require an organic molecule, known as a luciferin, to be oxidised by oxygen, a process that is helped along by an enzyme known as luciferase.
最简单的发光反应需要一种叫做荧光素有机分子，在荧光素酶的帮助下，进行被氧气氧化的氧化反应。
And what's the probability that some molecule, one of the oxygen molecules somewhere in this room, is in a certain energy state. Right?
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？
Evidence suggests that pumping in too much oxygen too quickly can strip the molecule of a single electron, creating a free radical.
证据显示，太快地吸入过多的氧气可能夺走单电子的分子，形成自由基。
The latest piece of the puzzle is superoxide, an oxygen molecule that may combine with light-sensitive proteins to form an in-eye compass, allowing birds to see Earth's magnetic field.
最新的谜题是过氧化物，这是一种氧分子，它可以与一些光敏蛋白质化合，在眼球中形成一个罗盘，让鸟儿们可以看到地球的磁场。
Mitochondria are the powerhouses of animal cells, converting oxygen and a metabolic product of glucose into ATP, a molecule that cells use to store chemical energy.
线粒体是动物细胞的能量来源，把氧和一种葡萄糖代谢产物转换成三磷酸腺苷（ATP），ATP是用来存储化学能量的一种细胞内化合物。
In a simple molecule, that path is pretty clear: water-h2o-is hydrogen-oxygen-hydrogen balanced perfectly in a V-shape at a 104.4-degree Angle.
举个简单的例子，非常清楚的，水分子——H 2 O——是氢-氧-氢形成一个键角104.4度的V字形结构。
Even one gas molecule can break a silicon-oxygen bond in glass, generating a defect, said Carlo G. Pantano, a professor of materials science at Pennsylvania State University.
“一个气体分子就可以破坏玻璃的硅氧键，并诱生一个缺陷。”Pennsylvania州立大学的材料科学教授CarloG . Pantano说。
The reason is that, besides its well-known role in haemoglobin, the oxygen-transporting molecule in the blood, iron is also involved in many aspects of brain development.
原因在于，除了铁在血红蛋白（血液中运输氧气的颗粒）中的重要性，大脑发育的很多方面都需要铁。
There is in the structure a unit of pattern containing copper, sulphur, and oxygen atoms in the same proportions as that in which they occur in the molecule.
每个硫酸铜单位晶格所含有的铜、硫、氧这三种元素的原子数的比例和每个硫酸铜分子中这三种元素的原子数的比例，二者是相一致的。
One dinitrogen pentoxide molecule contains two nitrogen atoms and five oxygen atoms.
分子中含有两个氮原子和五个氧原子。
Cherrical reaction reveals that oxygen reacts with PPS molecule chain and tiffs increases the brittleness and darkens the color of filter.
另外，理论分析表明PPS分子链加入了氧元素，使其颜色加深，脆性增加。
Combining two atoms of hydrogen with one of oxygen, you will get a molecule of water.
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。
The muscles need oxygen to make energy. And the molecule that carries oxygen to muscle contains iron. Guess what color iron is in the fish? Red.
肌肉需要氧气来制造能量，而负责输送氧气到肌肉里的小分子载体含有铁元素。猜猜铁元素在鱼肉里呈什么颜色？红色。
So, if we compare the sulfur to the oxygen, the oxygen it turns out is more electronegative and that is what holds the negative charge in this molecule.
因此，如果我们来比一下硫和氧，氧应该有更高的电负性，而在这个分子中它确实有负的电荷。
When electricity is passed through water under proper conditions, every molecule of water is separated into its atoms of hydrogen and oxygen.
当电在一定的条件下通过水时，每个水分子就会分解成氢原子和氧原子。
MMOH is the active site of MMO, its catalysis reaction mechanism mainly includes the activation of alkyl and oxygen molecule.
羟基化酶是其催化活性中心，它的催化机理的研究主要包括烷烃的活化和分子氧的活化这两个方面。
One molecule of water equals two atoms of hydrogen and one atom of oxygen.
一个水分子等于两个氢原子和一个氧饭子。
Red blood cells are packed with hemoglobin and each hemoglobin molecule requires four oxygen-binding iron atoms.
红细胞中充满了血红蛋白，而每个血红蛋白分子需要四个结合氧铁原子。
The chlorine atom is then free to react with an ozone molecule, taking one of the oxygen atoms to form chlorine monoxide.
然后，氯原子就可以自由地与臭氧分子反应，结合一个氧原子，形成一氧化氯。
The obtained ion spectra of NO molecule and atom oxygen are very useful experimental information for research of the NO2 photodissociation and NO molecule atom oxygen ionization dynamics.
所得到的NO分子与氧原子的离子谱及它们的离子信号对no2分子光解及NO分子与氧原子的电离动力学研究提供了有益的实验信息。
The active point of the chemical reaction between the coal and the oxygen was researched by using the molecule orbital theory.
应用量子化学分子轨道理论研究了煤与氧发生化学反应的活性点；
When we conduct experiments using nickel or cobalt sulfides, we see that carbon addition occurs primarily by carbonylation-the insertion of a carbon and oxygen molecule, or carbonyl group.
要是我们以镍或钴的硫化物做实验，增碳过程主要循羰基化途径进行，也就是塞入一个羰基(由一个碳原子、一个氧原子组成)。
The water molecule is made up of two hydrogen atoms and one oxygen atom.
水分子由两个氢原子和一个氧原子组成。
A molecule of water is made up of two atoms of hydrogen and one atom of oxygen.
一个水分子是由两个氢原子和一个氧原子组成的。
Depletion of this small molecule is a common consequence of increased formation of reactive oxygen species during increased cellular activities.
细胞活性增加时活性氧物种生成增多经常导致这种小分子的损耗。
Depletion of this small molecule is a common consequence of increased formation of reactive oxygen species during increased cellular activities.
细胞活性增加时活性氧物种生成增多经常导致这种小分子的损耗。
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