air exchange

• 气体交换

air exchange的用法和样例：

例句

1. One can see why gas exchange is severely compromised.
   这就是气体交换严重障碍的原因。
2. Ground water also contains dissolved carbon dioxide from the air and from the exchange of gases in plant roots.
   地下水也含有溶解了的二氧化碳，这些二氧化碳是从空气和从植物根系的气体交换中获得的。