macroporous silica

例句：

1. 1.The soil is macroporous, allowing roots to penetrate easily.
   土壤是多孔的，允许根系容易地穿透。
2. 2. The fabric is highly porous, allowing air to circulate freely.
   这种织物非常多孔，空气可以自由流通。
3. 3. The sponge is macroporous, providing a large surface area for absorption.
   海绵是多孔的，提供了大量的吸收面积。