Study on development pattern of environmental industry in China Research on development strategy of environmental protection industry in China 并列题名：Research on development strategy of environmental protection industry in China Study on the development of oat industry in China Study on the developmental history of ironand steelindustry in modern China Study on the development strategy of modern service industry in western China Report for sustainable development strategy of environmental protection industry in China Report on the development of environment judiciary in China Annual report on the development of water environment governance industry in China Study on the investment and financing mechanism of environmental protection industry in China