人工湿地在农村污水处理中的应用 张东 071444134 摘要: 随着我国农村经济的发展以及社会主义新农村的建设 ,农村污水的处理开始引起广 泛的关注。分析了我国农村生活污水发生量、排放特点及治理现状 ; 介绍了人工湿地类型、 特点及污染物净化机理 ; 结合我国农村现状 , 阐述了不同类型的人工湿地处理生活
The analysis of cascade refrigeration cycle in the application of the DSC system^ This paper introduced the basic working principle of Differential Scanning Calorimeter(DSC) , ombining with th cascade refrigera- analyzed the main contents of DSC device program temperature control and the implementation condition under low temperature to achieve the low temperature test conditions of constant reg