Research on improving the independent innovation ability of Chinese manufacturing enterprises Research on digital transformation of Chinese manufacturing enterprises Environmental innovation of Chinese manufacturing enterprises 并列题名：Environmental innovation of Chinese manufacturing enterprises Research on the efficiency of digital transformation in Chinese manufacturing enterprises Trade liberalization and technological innovation of Chinese manufacturing enterprises Research on digital Innovation ecosystem of intelligent manufacturing enterprises 并列题名：Research on digital transformation of Chinese manufacturing enterprises Research on the formation mechanism and solution of tax pressure on Chinese manufacturing enterprises Research on the risk of internet strategic transformation of manufacturing enterprises