Nowadays,the resources of underground water present itself as a valuable mineral and are to be the most important and in many regions one and only source of economic-drinking water-supply.For the past years,in connect...Nowadays,the resources of underground water present itself as a valuable mineral and are to be the most important and in many regions one and only source of economic-drinking water-supply.For the past years,in connection with fast development of industry and agriculture,there occurred the tendency of increasing necessity in usage of underground water resources for production-technical needs,irrigation of展开更多
文摘Nowadays,the resources of underground water present itself as a valuable mineral and are to be the most important and in many regions one and only source of economic-drinking water-supply.For the past years,in connection with fast development of industry and agriculture,there occurred the tendency of increasing necessity in usage of underground water resources for production-technical needs,irrigation of
