Ground water also contains dissolved carbon dioxide from the air and from the exchange of gases in plant roots. 地下水(GW)也含有溶解了的二氧化碳,这些二氧化碳是从空气和从植物根系的气体交换中获得的。
Ground water is simply water that occupies the open spaces in the soil and rock. 地下水(GW)就是那些充填了土壤和岩石空隙中的水。
Non-point source pollution is the Nation's leading source of surface water and ground water quality impairment. 非点源污染是全国地表水和地下水(GW)的质量受损的主要来源。
Such infiltration, which includes seepage from streams and lakes, contributes to the ground water supply. 从河流和湖泊中渗出的这种渗透水供给地下水(GW)源。
Construction and management of ground water reservoir is an effective way of increasing available water resources. 合理建设和管理地下水(GW)库是我国北方缺水地区增加水资源可利用量的有效途径。