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 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).
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 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。
Bith have a single lung, which draws in oxygen, strips each molecule of the necessary gases, and expels the waste gases through the skin.
比思人只有一个肺，吸进氧气，剔出所需的气体颗粒，再把废气从皮肤排出去。
Alcohol molecule is composed of carbon, hydrogen and oxygen.
酒精分子由碳，氢，氧三种元素构成。
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。
The electron- ics of the C atom and the N atom on the coal surface amino transfer to oxygen atom in the oxygen molecule.
煤表面氨基上的C原子和N原子的电子向氧分子中的氧原子转移。
At any rate, two oxygen atoms form, saturated and happy, a molecule.
无论如何，两个氧原子形成一个饱和的适宜的分子。
While single atoms of oxygen have been found alone or incorporated into other molecules, the oxygen molecule - the one we breathe - had never been seen.
虽然单个的氧原子已经被发现单独存在或混于其他分子中，我们所呼吸的氧气分子还没有在太空中发现过。
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。
The molecule carrier is anthraquinone, which consists of three fused benzene rings with one oxygen atom on each side.
分子承运者是蒽醌，包括三个融合的苯环，每一个苯环侧面有一个氧原子。
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。
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。
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