充氧器, 氧合器
Water contains hydrogen and oxygen. 水含有氢和氧。
Oxygen enters into many compound bodies. 氧是许多化合物的组成部分。
Mars is too dry and poor in oxygen. 火星上面过于干燥，并且缺乏氧气。
Water is composed of hydrogen and oxygen. 水由氢和氧组成。
Fish take in oxygen through their gills. 鱼通过鳃摄取氧气。
The oxygen react vigorously with the impurity in the iron. 氧气与铁中的杂质发生剧烈的化学反应。
