• According to this, the paper puts forward a kind of new permeable base material, which is called porous concrete.

    对此本文研究新型多孔混凝土排水基层材料

    youdao

  • According to this, the paper puts forward a kind of new permeable base material, which is called porous concrete.

    对此本文研究新型多孔混凝土排水基层材料

    youdao

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