Study on the financing credit system of small and medium-sized science and technology's enterprises Research on the innovation culture of small and micro science and technology enterprises Research on collaborative innovation strategies of small and mid-sized science and technology enterprises Studies on the financing problems of small and medium-sized enterprises 并列题名：Research on collaborative innovation strategies of small and mid-sized science and technology enterprises 并列题名：Research on the innovation culture of small and micro science and technology enterprises Investment and financing risk management in the small and medium-sized technological enterprises Investment and financing management of small and medium-sized enterprises "Green" transformation of small and medium-sized manufacturing enterprises