形容詞 permeable:

1. allowing fluids or gases to pass or diffuse through

1. A thin sheet of natural or synthetic material that is permeable to substances in solution.
   膜由天然的或合成的材料制成的薄片，可允許溶液中之溶質通過
2. The inward flow of a fluid through a permeable membrane toward a fluid of greater concentration.
   內滲透一種液體透過可滲透膜流向另一種濃度比它高的液體的內部流動
3. The property or condition of being permeable.
   滲透，滲透性可滲透的特質或狀態(tài)

per.me.a.ble

adj.（形容詞）
That can be permeated or penetrated, especially by liquids or gases:
可滲透的，可穿透的：可被滲透和穿透的，尤其指被液體或氣體：
例句：
permeable membranes; rock that is permeable by water.
滲透膜；被水滲透的巖層

【引伸】
per.meably
adv.（副詞）