Surface subsidence (ground depression) caused by the overuse of ground water.
过度抽取地下水引起的地面沉降。
The water comes from a mix of surface and ground sources.
的水来自地表水和地下水来源的组合。
Cool ground water near the surface percolates down into the earth.
地表附近的凉水经过过滤渗透到地下。
Seepage from land fills can pollute ground water or surface.
填土的渗漏可能污染地下水和地面水。
Seepage from land fills can pollute ground water or surface.
填土的渗漏可能污染地下水和地面水。
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