分类: 期刊第一期

矿区地下水资源量保护体系

Keywords:mining groundwater,resource quantity,protection method,system. Abstract During the development of mining proj-ccts,it is casy for sewage to lcak or spills to occur.If these pollutants enter groundwater,theself-cleaning cycle is long,or the sphere…

预测COVID-19对澳大利亚的影响

Abstract: This article explores the impact of the novel corona- virus(COVID-19)upon Australia’s education in- dustry with a particular focus on universitics.With the high dependence that the revenue structures of Australian…

zh_CNChinese