Aerobic exercise (as indicated by Wikipedia): Aerobic exercise refers to exercise that is of moderate intensity, undertaken for a long duration. Aerobic means "with oxygen", and refers to the use of oxygen in a muscle's energy- generating process. Many types of exercises are aerobic, and by definition are performed at moderate levels of intensity for extended periods.
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when carbon unites with oxygen 当碳团结与氧 ; 碳氧团结的时候 ; 当碳与氧气相结合
combine with oxygen 与氧结合
combine hydrogen with oxygen 使氢氧化合
steam purging with oxygen 蒸汽加氧吹洗
Not With Oxygen 不和氧
Compatibility with oxygen 与氧的相容性
To combine with oxygen 使成为氧化物 ; 氧化与氧化合
Hydrogen combines with oxygen to form water.
氢与氧化合成水。
Again the implication is that yawning has little or nothing to do with oxygen.
这再次暗示着打哈欠与氧气几乎没有关系。
Nowhere in nature is aluminum found free, owing to its always being combined with other elements, most commonly with oxygen.
由于铝总是和其他元素结合在一起,最常见的是和氧结合,所以在自然界中找不到游离的铝。
The hydrogen sulfide reacted with oxygen in rainwater moving through the rock.
VOA: special.2011.04.11
We could also figure out the formal charges, and obviously the formal charges between these two atoms, they're going to be identical, we're only dealing with oxygen atoms here.
我们还可以把形式电荷算出来,显然这两个原子的形式电荷,应该是完全相同的,我们要处理的只有氧这一种原子。
But there is nothing saying you cannot take magnesium and mix it with oxygen and make magnesium oxide.
同样的道理,如果将镁,与氧一起反应,就会得到氧化镁。
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