植物吸收氧气。
She was muzzled with an oxygen mask and tethered to an IV.
她被戴上了氧气面罩并输上了静脉点滴。
Burning fossil fuels uses oxygen and produces carbon dioxide.
燃烧化石燃料消耗氧气并产生二氧化碳。
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。
If headaches only occur at night, lack of fresh air and oxygen is often the cause.
如果头痛只发生在晚上，缺少新鲜空气和氧气常常是其原因。
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。
The drug increases the number of red cells in the blood, enhancing oxygen uptake by 10 percent.
这种药增加血液里的红细胞数量，将氧气吸收量提高百分之十。
If all the coronary arteries are free of significant obstructions, all parts of the heart will receive equal amounts of oxygen.
如果冠状动脉没有重大堵塞，心脏的各个部位会收到等量的氧气。
Oxygen is part of the air we breathe.
氧气是我们呼吸的空气的一部分。
Rain-soaked soil contains less oxygen than does drier soil.
雨水浸透的土壤比干燥的土壤含氧量少。
Water can be resolved [decomposed] into hydrogen and oxygen.
水可分解为氢和氧。
It's the way the whale's blood carries oxygen to the rest of its body.
这是鲸鱼的血液将氧气输送到身体其他部位的方式。
It could also be broken down into its component parts—oxygen and hydrogen.
它也可以按照组成部分被分解——氧和氢。
Air cannot penetrate between the soil particles, making the soil oxygen-poor.
空气不能穿透土壤颗粒，这使得土壤中缺少氧气。
The explosive mixture in a rocket consists of both a fuel and a supply of oxygen.
火箭中的爆炸性混合物包括燃料和氧气供应。
The organic matter may partially decompose, using up the dissolved oxygen in the sediment.
有机物可能会进行部分分解，并耗尽沉积物中的溶解氧。
Because they lack oxygen, marsh sediments are high in sulfides that are toxic to most plants.
由于它们缺乏氧气，沼泽沉积物中的硫化物含量很高，而硫化物对大多数植物都有毒。
Because early Earth lacked oxygen in its atmosphere, it also lacked a protective ozone barrier.
因为早期的地球大气中缺乏氧气，所以也缺乏起保护作用的臭氧层屏障。
When hydrogen sulfide reacts with the oxygen in the water, the result of that is sulfuric acid.
当硫化氢与水中的氧反应，得到的就是硫酸。
These devices then combine hydrogen and oxygen to make water and liberate electricity in the process.
然后这些装置将氢和氧合成水，并在这个过程中释放电力。
Other planets in our solar system lack the oxygen atmosphere that helps explain why life exists on Earth.
我们太阳系的其他行星缺乏氧气大气层，这有助于解释为什么地球上存在生命。
Bacteria that used oxygen produced by photosynthesis further altered the atmosphere to what we find today.
有的细菌利用光合作用所产生的氧气，进一步改变了大气层，使其成为今天的样子。
One method is invasive ventilation. A second method involves blowing oxygen into the lungs through a mask.
一种方法是有创通气。第二种方法是通过面罩将氧气吹入肺部。
Almost all the oxygen in water is oxygen 16, but a few molecules out of every thousand incorporate the heavier isotope 18.
水中几乎所有的氧都是氧16，但每一千个分子中就有几个含有较重的同位素18。
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.
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。
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。
He reasoned that iron took on more or less oxygen in response to conditions in the kimberlitic magma itself—mainly in response to heat and the available oxygen.
他推断，铁吸收或多或少的氧气是由于金伯利岩浆本身的条件——主要是由于热量和可用的氧气。
Researchers' clues to the Eemian climate come from measurements of the ratios of two slightly different types of oxygen, isotopes oxygen-16 and oxygen-18, preserved in the GRIP core.
研究人员对间冰期气候的线索来自保存在GRIP 冰芯中的两种略微不同类型的氧——即同位素氧-16和氧-18的比率。
The human brain needs to be without oxygen for only four minutes before permanent damage occurs.
人脑缺氧只需4分钟就会造成永久性损伤。
The air has only 0.13% oxygen.
空气中只有0.13%的氧气。
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