Fish take in oxygen through their gills.
鱼用鳃吸取氧气。
Humans take in oxygen and breathe out carbon dioxide.
人吸入氧气,呼出二氧化碳。
Do you know how fish take in oxygen?
你知道鱼类怎样吸入氧气吗?
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。
And, in fact, 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.
实际上,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。
应用推荐