blood purification

例句：

1. 1. Blood purification isessential for maintaining good health.
   血液净化对于保持健康至关重要。
2. 2. During the procedure, the patient's blood is purified to remove harmfulsubstances.
   在手术过程中，患者的血液被净化以去除有害物质。
3. 3. The hospital uses a specialmachine to perform blood purification onpatients with severe infections.
   医院使用一种特殊的机器对重症感染患者进行血液净化治疗。