“氧气”造句

臭氧是一种非常活跃的氧气形态。
Ozone is a highly reactive form of oxygen gas.

臭氧由氧气和紫外线发生反应而产生。
Ozone is produced by the reaction between oxygen and ultra-violet light.

密封的飞机内很少需要补充氧气。
Supplementary oxygen is rarely needed in pressurized aircraft.