n.不能渗透的性质或状态；不渗透性；不透过性

Beautiful color prints, high impermeability to gas and moisture-proof. 优质彩色印刷，高气体阻隔性及防潮性。

In this paper, the anlysis is presented to study the impermeability and crack resistance of basement concrete wall. 本文尝试聚丙烯纤维砼应用于地下室砼墙抗裂防水。

It is superior to sodium silicate cement in impermeability, resistance to dilute acid and cohesive strength. 钾水玻璃胶泥的抗渗透性、耐稀酸性和粘结强度高于钠水玻璃胶泥。

The detecting results show that concrete has no cracks and has excellent impermeability. 现场检测表明，混凝土未出现裂纹，且抗渗性良好，达到了预期效果。

The air entrained concrete has the advantage of high impermeability and frost re sistance. 引气混凝土(加入引气剂的混凝土)较一般混凝土在保证强度下,具有抗渗及抗冻性高的优点。

And air-entraining agent increases impermeability of hybrid fiber reinforced concrete. 引气剂有助于提高混杂纤维混凝土的抗渗性。