并列题名：Typical case analysis and law enforcement practice of environmental protection Typical case analysis and law enforcement practice of environmental protection 并列题名：Present situation and development of Chinese environmental protection 并列题名：Civil servant's general knowledge on environmental protection 并列题名：Research on market mechanism of environmental protection 并列题名：International experience and reference of enviromental protection 并列题名：Economic analysis of law enforcement in China in transition 并列题名：Economic analysis of the environmental impacts of development projects 并列题名：Rare earth catalytic materials applications in environmental protection 并列题名：Development planning & environmental protection