porous pellet

例句：

1. 1. The material is made of porous pellets that absorb water quickly.
   这种材料是由多孔颗粒制成，能迅速吸收水分。
2. 2. The porous pellets in the soil help to aerate it and improve drainage.
   土壤中的多孔颗粒有助于通气和改善排水。
3. 3. The researcher found that the porous pellets were effective at removing pollutants from the water.
   研究者发现这些多孔颗粒能有效从水中去除污染物。