permeable

adj.有浸透性的,能透过的

能够渗透的；透水的

形容词

1. The fabric used in this raincoat is permeable, allowing water to pass through easily.
这件雨衣用的面料是透水的，水能够轻易穿过。
2. Some substances are not permeable to certain gases, which can be useful for filtering purposes.
一些物质对某些气体不透水，这可以用于过滤目的。