If a substance is permeable, it allows liquids or gases to go through it.

Certain types of sandstone are permeable to water. 某些类型的沙岩可渗水。

The solvent passes through the permeable membrane to the solution. 溶剂透过渗透膜与溶液混合。

Soft and gas-permeable contact lenses are kinder to the eyes than hard lenses. 柔软透气的隐形眼镜对眼睛要比硬镜片好。