mixed bed ion exchange

例句：

1. 1. The mixed bed ion exchange system is used to remove pollutants from water.
   混合床离子交换系统用于从水中去除污染物。
2. 2. The mixed bed ion exchange process is crucial for the purification of industrial wastewater.
   混合床离子交换过程对于工业废水的净化至关重要。
3. 3. The mixed bed ion exchange technique has been widely used in water treatment plants.
   混合床离子交换技术在水处理厂得到了广泛应用。