By analyzing the relation between the underground water and environment, this paper raises the over exploitation cause the ecological and environment problem in the Haihe River Valley.
通过分析海河流域地下水开采与环境变化的关系，揭示了由于海河流域地下水过量开采而引发的生态环境问题。
Mine-used drinking fountain of flameproof and Intrinsically Safe can solves the drinking problem of underground personnel and improves the drinking condition and quality of drinking water.
矿用隔爆兼本质安全型饮水机可以解决煤矿井下工作人员的饮水问题，提高井下工作人员的饮水条件和饮用水质量。
In case of underground construction in area of high ground water level, there is often anti-floating problem during the work.
在高地下水位地区进行地下工程施工，往往存在工程的抗浮问题。
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