gas exchange action

• 气体交换作用

gas exchange action的用法和样例：

例句

1. The experimental results show that activated meerschaum has an ability of removing fluoride due to the ion exchange and adsorption.
   活化海泡石除氟机理是由于活化过程中，靠离子交换作用吸附了一定量的铝离子，而铝离子又与水中的氟离子结合从而达到除氟目的。