Molecules may consist of like atoms, as in oxygen, or of unlike atoms, as in carbon dioxide.
分子或由同样原子组成，如在氧气中，或由不同原子组成，如在二氧化碳中。
Through small scale tests and pilot tests, research on feasibility and effectiveness of jet flow aeration process on sewerage, shows that its treatment is as good as in oxygen exposure station.
通过小型试验和现场应用，对应用射流曝气技术处理油田污水的工艺和效果进行了可行性研究和试验，研究表明应用射流曝气技术处理油田污水，可以达到曝氧站的处理效果。
Hemoglobin, as you know, is an oxygen carrier and so red blood cells concentrate in bags of hemoglobin which circulate in your blood and they carry oxygen.
如你所知，血红蛋白是氧气的载体，所以红细胞集中在血红蛋白的袋子里，血红蛋白在血液中循环，它们携带氧气。
Most hydrogen and oxygen atoms in water are stable, but traces of both elements are also present as heavier isotopes.
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。
As that plankton sank, it fed a secondary boom among the bacteria below, consuming much of the oxygen in deeper waters.
由于那种浮游生物下沉，滋养了下面的细菌，使其形成二级繁荣，大量消耗了深层海域的氧气。
Should a lifeline break, a man might live a minute or two — as helpless as if he were out in space or under water without an oxygen supply.
万一生命线断了，人就只能活一到二分钟—就像呆在太空中或水下却没氧气一样没有生存希望。
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.
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。
When Margie and I stopped talking, it was as if the craft had blown to bits. I had plenty of oxygen in my suit, but I was no longer tethered to anything.
当我和玛吉不再通话的时候，我的“飞船”碎了，我的宇航服里有充足的氧气，但是我没有任何什么能依靠的了。
As a bonus, the steam also smothers the flames by diluting the amount of oxygen in the surrounding air.
这种办法的另一个好处在于，产生的水蒸汽能够稀释周围空气中的氧气浓度，从而抑制火焰的燃烧。
If as in the prototype, water and/or carbon dioxide are pumped into the vessel, the ceria will rapidly strip the oxygen from them as it cools, creating hydrogen and/or carbon monoxide.
如果以原型中的工作来讲，二氧化碳或者水被注入到容腔中，随着它被降温的过程中二氧化铈会迅速地夺取他们中的氧，从而制造出氢气或者一氧化碳。
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.
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。
I feel as if the air in his apartment has gotten thinner, or as if someone has siphoned most of the oxygen out of my lungs.
我感觉他的房间里的空气变得稀薄了，好像有个人把我肺部里的氧气都给吸走了似的。
As small microbes living in the sea feed on oil and natural gas, they consume large amounts of oxygen which they require in order to digest food.
生活在海洋的小微生物靠石油和天然气存活，它们必须消耗大量氧气才能消化食物。
To do this, the bugs need access to the oxygen in seawater to carry away the electrons produced as the sulphide is broken down.
为此，细菌们需要靠海水中的氧气来带走硫化物分解时产生的电子。
He needs to disarm a lost nuclear warhead (technology as danger), and while he is successful, he does not have enough oxygen left in his suit to return to Deep Core (technology as inadequate).
他的任务是找到失踪的核弹头并拆除上面的引信（反映了技术之危险），虽然后来任务完成，潜水衣中的氧气却不足以支撑他重新返回钻台了（反映了技术之不足）。
As Dr Hazen pointed out, carbon is the fourth-most-abundant element in the universe, after hydrogen, helium and oxygen.
就像Hazen博士指出的那样，碳是宇宙中含量排第四的元素，仅落后于氢，氮和氧。
By ensconcing the lithium inside the membrane's seal, the PolyPlus battery reacts safely with the oxygen dissolved in the water and delivers as much as 1,300 watt-hours per kilogram of electricity.
通过将锂安置在密封薄膜中，PolyPlus电池能够与水中的溶氧安全地发生反应，并能输送高达每公斤1,30 0瓦特时的电力。
By ensconcing the lithium inside the membrane's seal, the PolyPlus battery reacts safely with the oxygen dissolved in the water and delivers as much as 1, 300 watt-hours per kilogram of electricity.
通过将锂安置在密封薄膜中，PolyPlus电池能够与水中的溶氧安全地发生反应，并能输送高达每公斤1 30 0瓦特时的电力。
"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.
“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。
It is true that human activity is causing a steady, measurable decline in the oxygen content of the world's air, although as yet this decline is negligible.
的确，人类的活动导致全球空气中的含氧量在以稳定的，可以测量到的幅度下降。尽管如此，但这种下降是微乎其微的。
In surveying potential candidates for "new Earths," astronomers look for traces of biological activity, such as the presence of oxygen.
在可能成为“新地球”的调查对象中，天文学家搜寻生物活动的迹象，例如检查是不是有氧气。
Researchers had thought that only single-celled organisms such as prokaryotes and protozoa could live in the oxygen-deprived environments of the deepest ocean.
研究人过去一直认为，只有原核生物和原生生物这样的单细胞生物才能够在深海的缺氧环境中生存。
To survive for years in space, astronauts may need to bring along miniature ecosystems that provide necessities such as oxygen and food.
为了长年在太空生活，宇航员必须携带微型的生态系统，从而提供包括氧气和食物在内的生活必需品。
Most models of planets assume that they are similar to the terrestrial planets in our own Solar System, with about half as much carbon as oxygen in the atmosphere.
而多数行星模型均假设它们和我们太阳系的类地行星相似，即在大气中碳含量是氧含量的一半左右。
Commander Dylan Schmorrow, a cognitive scientist with the navy, devised a crown of sensors to monitor activity in the brain such as blood flow and oxygen levels.
海军中校迪伦·斯莫罗是一位认知科学家，他设计出一种传感器人造冠，用来监测大脑的一些活动，如血流量和氧含量。
As a result, the researchers' model suggests, the waters down-current of a large methane plume, especially in an ocean basin with poor circulation, could lose as much as 95 percent of their oxygen.
研究人员的模型显示，这一结果导致大量不断释放的甲烷随流而下，使得尤其是在循环不畅的海洋盆地，水中氧气损失可能会高达95%。
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.
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。
Researchers had thought that only single-celled organisms such as prokaryotes and protozoa could live in the oxygen-deprived environments of the deepest ocean.
研究人员一度以为，只有单细胞生物，如原核生物和原生动物，才能在深海缺氧环境中生活。
Researchers had thought that only single-celled organisms such as prokaryotes and protozoa could live in the oxygen-deprived environments of the deepest ocean.
研究人员一度以为，只有单细胞生物，如原核生物和原生动物，才能在深海缺氧环境中生活。
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