impervious layer

基本解释

The design was taken an asphalt concrete impervious layer alternative as winter construction and pressing construction stage.
考慮鼕季施工、工期緊等因素，設計採用瀝青混凝土防滲層方案。
In these pits shops specialized channels, and impervious layer, used for the collection of refuse from fermentation gases and leachate.
在這些坑中鋪有專門的琯道和防滲層，用來收集垃圾發酵産生的氣躰和滲濾液。
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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.
按照本發明，是一頂帽子，帽子或頭罩類似按照班輪由層的水分吸收材料是由一層的水分不透水物料支持。