granular filter material

例句：

1. 1. The granular filter material is usedto remove impurities from the water.
   颗粒过滤材料用于从水中去除杂质。
2. 2.The granular filter material is effective inremoving bacteria and viruses from the air.
   颗粒过滤材料能有效从空气中去除细菌和病毒。
3. 3. The granular filter material is commonlyused in water treatment plants.
   颗粒过滤材料在水处理厂中常被使用。