It is of very important significance to understand unsaturated water vadose through two layer porous media in design of cover of near surface repository of radioactive waste.
非饱和水通过双层孔隙介质的渗流对于放射性废物近地表处置库的顶盖设计具有重要意义。
The insulation layer is between the outer cover and the inner liner of the water tank, insulation performance will directly influence the actual available amount of how much solar hot water.
保温层是水箱外皮与内胆之间的部分，保温层性能的好坏直接影响太阳能实际可用热水量的多少。
"If we were to take all the water that is locked up inside the moon, and put it in a homogenous layer on the lunar surface, it would cover the moon to about a meter depth," he explained.
“如果我们把蕴藏在月球内的水份全部取出，并将其覆盖在月球表面的话，该含水层的深度将达1米。”他解释道。
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