非渗水土路基的英文：
non-permeable soil subgrade

The alkanes are non-polar.
烷是非极性的。

non-bumper seesaw
防撞跷跷板

non-Euclidean norm
非欧几里得范数

This membrane is semi-permeable.
这层膜是半渗透性的。

The waste material is placed in cells with permeable membranes
废液置于有渗透膜的槽中。

The major difference is that geological structures have limited permeability.
主要的问题是地质结构的渗透性有限。

He died on British soil.
他死于英国。

The soil is difficult to work with.
这块污迹很难处理。

The fertilization of soil is a subject to the farmers.
肥料的施用对农民来说是一门学问。