The technology of in situ immobilization with amendments is an important measure that remediates the soil contaminated by heavy metals, and selecting economical
Migrant worker is the product of urban and rural dual structure,and also an important force promoting social development.Paying close attention to living condit
Firstly,this paper reviews and analyzes historic background of urban-rural integration of Chongqing,and the evolution and trend of urban and rural dual economic