diffusion impervious layer 扩散阻挡层
impervious layer design 防渗层设计
Modified impervious layer 改性沥青防渗层
relatively impervious layer 相对隔水层
impervious s layer 不透水层
impervious clay layer 不透水粘土层
This impervious layer or boundary will retard the free diffusion of moisture. This condition is referred to as case hardening.
这一不透气的壳层(或边界层)会阻滞水分自由扩散，这种情形称为表面硬化。
The design was taken an asphalt concrete impervious layer alternative as winter construction and pressing construction stage.
考虑冬季施工、工期紧等因素，设计采用沥青混凝土防渗层方案。
In these pits shops specialized channels, and impervious layer, used for the collection of refuse from fermentation gases and leachate.
在这些坑中铺有专门的管道和防渗层，用来收集垃圾发酵产生的气体和渗滤液。
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