Survey in chemical constituent and resource utilization of medicinal plant from tribe Isopyreae;

The characteristics of resource utilization and environmental impact of China in 1990—2003 were analyzed by the derived indicators of economy-wide material flow analysis(EW-MFA) on the base of the analysis of more than(2 600) items of data on resource utilization and environmental impact at national level.

The background and connotation of the green process engineering science is described and analyzed with actual examples of research, and discussion is made on methods, objectives, scopes and prospect of research on resource utilization-materials conversion processes based on the environmental economy assessment system.

Research survey and countermeasure on resources utilization in stem tuber of Bletilla striata;

Analysis of Climatic Resources Utilization Efficiency of Maize in Shanxi Province;

Township hospitals' resources utilization in Guangzhou area

It is undoubtedly a sustainable farming system from both resources use and environmental friendly aspects as nitrogen fixed by legume sustains this system.

Some approaches to increase resources use efficiency by stimulating effect is presented as well.

This article first introduced the optical cable access network construction importance, then the key introduction optical cable access network construction principle, finally proposes the fiber optic cable line protection way, the resources use method and the request.