water penetration

例句：

1. 1. The soil is highlypermeable, allowing water to penetrateeasily.
   土壤非常透水，水分可以很容易地渗透。
2. 2. Thenew membrane greatly improved thewater penetration of thepaint.
   新的膜极大地提高了油漆的渗透性。
3. 3. Water penetration tests areused to measure the ability of a materialto allow water to pass through it.
   水渗透测试用于测量材料允许水分通过的能力。