impervious layer

基本解释

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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In accordance with the present invention, a liner for a hat, cap or similar head covering comprises a layer of moisture absorbent material which is backed by a layer of moisture impervious material.
按照本发明，是一顶帽子，帽子或头罩类似按照班轮由层的水分吸收材料是由一层的水分不透水物料支持。