针对丁庄水库坝外沼泽化的情况及库区的地质条件,采取自流渗井结合暗管的排渗方案很好的解决了坝外沼泽化的问题,对平原水库坝外排......

As it is known fresh water represents conditioned factor for human body’s life. That’s why the superiority of drinking......