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(zhì)通過
2. The inward flow of a fluid through a permeable membrane toward a fluid of greater concentration.
   內(nèi)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(nèi)部流動
3. The property or condition of being permeable.
   滲透，滲透性可滲透的特質(zhì)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）