... impervious stratum 不渗透地层 impervious material 防渗材料,不透水材料... impervious barrier 防渗层 ...
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core impervious material 心墙防渗料
dam core impervious material 大坝心墙防渗掺合料
impervious earth material 防渗土料
impervious liner material 防渗衬层材料
All surfaces inside the building should be of impervious material to permit thorough washing.
建筑里所有的表面都应当用不透水的材料这样可以彻底清洗。
The coal and limestone storage yard must have a bottom impermeabilization system. This system may be constituted by a clay layer, a geomembrane layer, or other impervious material.
煤料和石灰石存放场必须有底部防渗系统。该系统可由粘土层、地质处理用膜层、或其他防渗材料组成。
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。
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