porphyritic structure

例句：

1. 1. The rock is porphyritic, so it can absorb water and nutrients easily.
   这种岩石是多孔的，因此它能够容易地吸收水分和养分。
2. 2. The soil is very porous, allowing roots to penetrate deeply.
   土壤非常多孔，允许根系深入地生长。
3. 3.The porphyritic structure of the rock allows it to support the weight of the overlying layers.
   岩石的多孔结构使其能够支撑上层层的重力。