When gasoline burns, gasoline and oxygen molecules combine to form new molecules . 当汽油燃烧时，它的分子和氧气分子结合起来，形成新的分子。
Yet oxygen gas did not begin to accumulate in the atmosphere until about 2 billion years ago . 但是大约在20亿年前，氧气才开始在大气层中积累。
If a plant is placed in an atmosphere devoid of oxygen, it very soon replenishes the oxygen . 若将植物放在缺乏氧气的大气中，大气很快补充了氧气。
The powerful ventilators added their continuous blasts and saturated the glowing plates with oxygen . 威力强大的鼓风机不停地吹着，把氧气充分地供应给白热的炉火。
All three astronauts were fully suited, breathing oxygen piped directly into their suits . 三个宇宙航行员都是全套太空装，吸入的氧气是用管子直接输入到他们的太空装里的。
Owing to the high proportion of unburnt oxygen in this efflux, afterburners are often provided in the jet-pipe . 由于这种喷气流中含有大量未燃烧的氧气，在喷管中往往安装加力燃烧室。
Colored circles on the map denoted kidney dialysis machines, oxygen generating units, iron lungs and similar apparatus . 图面上彩色的圆圈表示肾透析机，氧气发生器，铁肺以及诸如此类的装置。
While the five babies were still quietly sleeping in oxygen tents in a hospital nursery , their parents were paying the price for fame . 当这五个婴儿还安祥地睡在医院育婴室的氧气帐内时，他们的父母却在为名声付出代价了。
maximum uptake was not significantly decreased in young non-smokers until a blood level of about 5% of cohb was attained. 直到血液的一氧化碳含量达到大约5以上时非吸烟青年的最大氧气消耗才明显地减少。
When an oxidizing plasma is run in a system coated with fluorocarbon film, a substantial quantity of f atoms is released in the plasma . 当氧气等离子体在覆盖有氟碳薄膜的系统中起辉时，就会有相当数量的F原子在等离子体中释放。
