oxygen-rich air

• 富氧空气

oxygen-rich air的用法和样例：

例句

1. However, direct use of oxygen, or enrichment of the air with oxygen, is necessary for some processes.
   但是对于某些过程，直接使用氧或富氧空气是必要的。
2. Oxygen-enriched atmospheres can cause materials that burn in air to burn more violently or even explosively.
   富氧空气会导致在空气中可燃的材料燃烧得更剧烈，或者甚至发生爆炸。