ultrafitration theory

例句：

1. 1.The ultrafitration theory has been widely applied in water treatment.
   超滤理论在水处理领域得到了广泛应用。
2. 2. The ultrafitration theory provides a new perspective for the study of membrane separation processes.
   超滤理论为膜分离过程的研究提供了新的视角。
3. 3. The ultrafitration theory has been proven to be effective in removing impurities from water.
   超滤理论已被证明能有效从水中去除杂质。