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You could run the reaction, take solid iron gaseous oxygen, form iron oxide, measure the heat of formation of it, tabulate it.
你可以进行一个反应,用固态铁和氧气生成氧化铁，测量它的生成热，列成表格。
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If we take hydrogen peroxide in the liquid state, it can break down to form water and oxygen.
如果我们有一些液态的过氧化氢，它会分解成水和氧气。
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You regulate your breathing rate in order to accomplish that and we'll talk about this in a couple of weeks.
人们调节呼吸的频率来获得足量的氧气,我们过几周会讲到这方面内容
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And, in fact, if you take the jaws of a powerful magnet and pour liquid oxygen in between the jaws, the oxygen will stop and will sit in the jaws.
实际上，如果你用一块,具有较强磁力的颚型磁铁,然后把液氧倒在颚型磁铁的中间，氧气会停在颚型磁铁中。
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Because of the lack of oxygen getting to the cells, the cells are no longer able to carry on their various metabolic processes.
由于细胞中缺少氧气,所以细胞不能完成,它们的各种新陈代谢活动
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Well, if you get the combustion chamber hot enough, in point of fact, there are some reactions between nitrogen and the oxygen.
如果燃烧室的温度足够高的话，实际上在氮气和氧气之间,会发生一些反应。
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The respiratory system plays an important role in maintaining our internal environment at the proper level of oxygen, by bringing the right amount in.
呼吸系统的重要性在于,通过向体内输入适量的氧气,维持人体内环境中的氧平衡
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All of these from the group one and two through the group five and six elements, but what about elements, what about molecules like hydrogen, or nitrogen, or maybe oxygen?
所有的这些都是来自于第一主族和第二组主族,到第五主族和第六组主族的悬殊，那么元素呢，比如氢气，氮气或氧气那样的分子呢？
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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.
众所周知,血红蛋白可以携带氧气,含有大量血红蛋白的红细胞,在全身循环,以携带氧气
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This is exactly where I don't really know the details, but I take it it's something like: because of whatever the original input was, eventually the blood's no longer circulating and oxygen isn't making its way around the body.
事实上我对这方面不是很了解,我只能认为是,不论最初的死亡原因是什么,最后血液不再流动,氧气不能输送到全身
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But, as you know, air is only 20% oxygen, the balance being nitrogen.
但是你知道空气中只有20%的是氧气，大部分的是氮气。
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The cardiovascular system, which is the heart and the blood vessels which are responsible for and the blood and so this is responsible for moving blood around the body and the blood brings oxygen and nutrients to every part of the body, you know that.
心血管系统,包括心脏和血管,主要负责输送血液,即心血管系统负责将血液送至全身,血液会带着氧气和营养物质,到身体的每一个部分,你懂的
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Cl We know that because the sulfur and the chlorine in the oxygen have different average valence electron energies, they'll have different electron affinities.
我们都知道因为S和,在氧气中,具有不同的平均价电子能，所以他们的电子亲和力也不同。
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