| 1. | Collect and put the relevant materials in order , pass the typical analysis of cases , announce agricultural circulation economic , industrial circulation economy , service trade offal circulation utilize , area ( city ) basic mode of circulation economy , have established the system of frame
对相关资料进行了搜集与整理，通过典型案例分析，揭示了农业循环经济、工业循环经济、服务业废弃物循环利用、区域(城市)循环经济的基本模式，建立了框架体系。 |
