oxygen from the air

Atoms of iron in the nail combine with atoms of oxygen from the air to form molecules of iron oxide, or rust.

钉子里的铁原子与空气中的氧原子结合后形成氧化铁分子，也就是锈。

the process of taking in oxygen from the air and releasing carbon dioxide.

从空气中吸入氧气呼出二氧化碳的过程。

take oxygen from the air

从空气中吸取氧气

sulfur dioxide can block the oxygen from the air caused by the oxidation of the wine.

二氧化硫可以阻止由空气中的氧使葡萄酒所引起的氧化作用。

a jet engine like those on passenger airplanes, gets oxygen from the air.

喷气式发动机，比如客机上装的那种，从空气中汲取氧气。

oxygen from the air then combines with carbon and hydrogen atoms to release yet more heat, which breaks down more fuel.

然后空气中的氧气与二氧化碳和氢原子结合并释放出更多的热量，这些热量又可以使更多燃料的烃链断裂。

here's why: certain nutrients are unstable when exposed to oxygen (from the air), heat (from cooking) and light.

原因如下：当与（空气中的）氧气，（烹饪时的）温度接触或者接受光照时，某些蛋白质将变得不稳定。

they get oxygen from the air, so they must return to the surface regularly to breathe.

它们从空气中获得氧气，所以它们必须不时地回到海面上呼吸。

the carbon, of which coal is largely composed, has combined with oxygen from the air and formed carbon dioxide.

作为煤的主要成分的碳，已经同空气中的氧化合成二氧化碳。

oxygen from the air took the place of the cobalt oxide.

空气中的氧气代替了钴氧化物。

a lithium-air battery pulls oxygen from the air for its charge, so the device can be smaller and more lightweight.

锂空气电池从空气中吸收氧气充电，因此这种电池可以更小、更轻。

when we breathe, we take oxygen from the air and release co2.

当呼吸的时候，我们从空气中吸入氧气并释放出CO2。