淋滤作用主要改造爆发相凝灰质熔岩，使其变得极为疏松，孔隙度提高到15 %以上。
The eruptive tuffaceous volcanic has been mainly changed by leaching, and become loose and porous, with the porosity to be increased to over 15%.
淋滤作用主要改造爆发相凝灰质熔岩，使其变得极为疏松，孔隙度提高到15 %以上。
The eruptive tuffaceous volcanic has been mainly changed by leaching, and become loose and porous, with the porosity to be increased to over 15%.
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