臭氧是氧气与紫外线发生化学反应而产生的。
Ozone is produced by the reaction between oxygen and ultraviolet light.
有几种化学物质取代了氧气。
理论上讲下一步应该是发射能够观测化学信号的望远镜，以为生命的存在提供依据。有价值的信号包括氧气、水蒸汽和二氧化碳。
The next logical step would be a space telescope capable of picking up the chemical signatures of life, including the presence of oxygen, water vapour and carbon dioxide.
如果生命存在，科学家们希望这个行星上的光线能够嵌入大气层分子的化学指纹位移指示器，像氧气、甲烷一类的气体。
If life exists, scientists expect the planet's rays to be embedded with tell-tale chemical fingerprints of atmospheric molecules, such as oxygen and methane.
通常，如果矿物暴露于可以夺取电子的介质中，就可以发生这种化学成矿作用，正如氧化过程中氧气的作用方式。
Usually this happens by exposing minerals to agents that rip away electrons, just as oxygen does during oxidation.
深呼吸因为它增加你的氧气和改变你的身体产生的化学反应。
Deep belly breathing, because it increases your oxygen and shifts your body chemistry.
在降温后，该点阵能够把氧气从包括水和二氧化碳等物质的周边化学元素中分离出来。
When cooled the lattice strips oxygen from surrounding chemicals, including water and CO2 in the reactor.
但生物化学远远超出氧气。
“关键就在于使用空气中的氧气作为试剂，而不是在电池内部添装必需的化学成分。”布鲁斯说。
"The key is to use oxygen in the air as a re-agent, rather than carry the necessary chemicals around inside the battery," says Bruce.
但这个发现的重要意义在于，包括氧气产生在内的化学作用也发生在我们太阳系的其它地方。并且，这样的化学反应在太阳系以外也可能同样非常普遍。
But the discovery is significant in that it proves that chemistry involving oxygen occurs naturally elsewhere in our own solar system, and could be quite common outside of it as well.
当燃料与氧气结合，我们就说燃料开始燃烧了，实际发生的是化学能(燃料与氧气)转化成热能。
When a fuel unites with oxygen, we say the fuel burns; what is really happening is that chemical energy (fuel and oxygen) is changing to heat energy.
在化学过程中，氧气经常充当为反应物。
紧急氧气供给系统，可以让乘客免受化学气体的攻击。
Emergency oxygen supply system, allowing passengers from chemical gas attacks.
热量引起化学反应，释放出氧气。
The heat brings about a chemical reaction, and oxygen is liberated.
动起来。迅速进行一阵有氧运动，通过给大脑摄入大量氧气、激活例如多巴胺的大脑化学物质，就可以减轻压力、提高注意力。
Start moving. A quick burst of aerobic exercise relieves stress and improves concentration by flooding the brain with oxygen and activating brain chemicals such as dopamine.
改变电化学制氧机隔膜，分别测得不同隔膜下氧气纯度。
By changing the membrane of the machine, the purity of oxygen under the different membrane is measured.
氧气是物质世界的重要元素之一，它的化学性能很活跃。
Oxygen is one of the most important elements in physical world, it is very active chemically.
采用人工发酵法研究了氧气条件对发酵烟叶化学成分的影响。
Effect of oxygen condition on chemical components in flue cured tobacco was studied by method of artificial fermentation.
这会导致化学黄萎病、头痛、眩晕、虚弱、昏聩和其它伴随着氧气供应减少的表现。
This can lead to chemical cyanosis, headache, dizziness, weakness, confusion, and other manifestations associated with a reduced oxygen supply.
糖类化学合成碳、氧、氢、通常与氢气和氧气的比例组成的水权。
Carbohydrate - Chemical compound of carbon, oxygen and hydrogen, usually with the hydrogen and oxygen in the right proportions to form water.
铁，铜，铝与氧气和稀硫酸反应的化学方程序。
Iron, copper, aluminium compose in reply with oxygen sparse reactive sulfuric acid chemical equation.
氧气与铁中的杂质发生剧烈的化学反应。
在燃料电池，氢气和氧气的化学(或空气)直接转换为电能的，即没有一个燃烧的过程。
In a fuel cell, chemical energy from hydrogen and oxygen (or air) is directly converted to electrical energy, i. e. without a combustion process.
氧化铍在表面的覆盖来源于真空中残余氧气在样品表面的化学吸附，从而导致了铍的择优氧化。
The coverage of BeO on the specimen surface came from the preferential oxidation of beryllium due to the occurrence of residual oxygen in the vacuum system.
然后，含有叶绿素等成分的细胞在阳光的照射下发生化学反应，产生氧气。
Then, with the action of sunlight on cells containing chlorophyll, and other materials, chemical reactions occur, and oxygen is released.
受到严重轻视的瑞典药剂师、化学家。他是氧气和氮气同时也是砷、钡、氯、锰和钼元素的真正发现者。
Seriously undervalued Swedish apothecary and chemist who was the actual discoverer of oxygen and nitrogen as well as of the elements arsenic, barium, chlorine, manganese, and molybdenum.
采用循环伏安法，对位于疏水孔内的氧气进行耗尽式电化学还原反应，其所消耗的电量用于对膜疏水孔体积及孔率的测定。
The consumed charge of exhaustive electrolysis of oxygen in the pores of TLGE in cyclic voltammetry is used to measure the total hydrophobic pore volume of both catalytic and non catalytic membranes.
采用循环伏安法，对位于疏水孔内的氧气进行耗尽式电化学还原反应，其所消耗的电量用于对膜疏水孔体积及孔率的测定。
The consumed charge of exhaustive electrolysis of oxygen in the pores of TLGE in cyclic voltammetry is used to measure the total hydrophobic pore volume of both catalytic and non catalytic membranes.
应用推荐