It carried oxygen,water, electricity and food for two men for two days on the moon's surface.
VOA: special.2009.07.22
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。
You burn methane, and it combines with oxygen to form water, to form CO2.
燃烧酒精,酒精分子和氧气结合形成水和二氧化碳。
The astronauts were three hundred twenty thousand kilometers from Earth with little oxygen, electricity and water.
VOA: special.2009.07.22
So let's think about water here as our simplest example with oxygen.
让我们讨论,对于氧来说最简单的例子-水。
High levels of domoic acid in the sardines may have worsened the effects of oxygen loss in the water as the fish crowded into a limited space.
VOA: special.2011.03.15
Water is made of one oxygen atom and two hydrogen atoms.
VOA: special.2009.09.30
The algae take much of the oxygen from the water.
VOA: special.2009.07.28
The hydrogen reacts with oxygen to produce electricity and water.
VOA: special.2009.09.07
Too much mulch can restrict oxygen and water flow.
VOA: special.2009.06.23
"If you have an imbalance, or literally too much nitrogen and too much phosphorous getting into those systems, you can essentially deplete the oxygen in that water.
VOA: standard.2010.08.04
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