Ammonia(NH3)is not only an important chemical in many fields,but also provides a promising intermediate for energy stor-......

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......