oxygen enrichment

• 富氧

oxygen enrichment的用法和样例：

例句

1. Membrane technology of oxygen enrichment has been widely used for combustion assistance.
   摘要膜法富氧及其助燃技术的应用非常广泛。
2. 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。