Research on the transformation of China's rural migrant workers 并列题名：Research on the transformation of China's rural migrant workers Research on the transformation of Chinese animation industry Research on the transformation of China's monetary policy in the new era Research on digital transformation of Chinese manufacturing enterprises Research on the transformation of urban investment enterprises Research on strategic transformation of China's shipbuilding industry Research on the fair opportunity of migrant workers Research on citizenization of migrant workers Research on the transformation and upgrading of China's marine industry