jigged-bed ion-exchange

例句：

1. 1. The hospital uses a jigged-bed ion-exchange system to treat patients with kidney failure.
   医院使用一种床的离子交换系统来治疗肾功能衰竭的患者。
2. 2. The process of ion exchange is crucial for the purification of water.
   离子交换过程对于水的净化至关重要。
3. 3. During the ion exchange process, positively charged ions are replaced by negatively charged ions.
   在离子交换过程中，正电荷的离子被负电荷的离子所取代。