结晶体与混凝土结构结合成封闭的防水层整体，堵截来自任何方向的水流及其它液体侵蚀。
The crystal and concrete combine into the closed water-proof layer to block the erode of water flow and other liquids from all directions.
本文对有限封闭具弱渗透层的含水层系渗流问题，在普遍情形下求得了解的结构。
In this paper the sink problem of the finite close water bearing strata system with weak leaky seam have been discussed, under the general condition we obtained the structure of solution.
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