1. Beneath this active layer is a second layer called "permafrost", which is frozen all year around, and is impermeable to water. 在这一活跃层下面，是被称为“多年冻土”的第二层，终年冻结，不透水。
2. The canoe is made from an impermeable wood. 该独木舟用防水木材制成。
3. Impermeable rocks are referred to as aquicludes. 不渗透的岩层都称为隔水层。
4. Impermeable clay limits downward percolation of water and fulvic acids, reducing chemical weathering and podzolization. 不可渗透的粘土限制了水和黄腐酸的向下渗透，从而减少了化学风化和土壤灰化作用。
5. Rocky or impermeable sites should be avoided. 多岩石和不具渗透性的地点应当避免。
