并列题名：Research on China's producer services import and manufacturing transformation and upgrading Research on China's producer services import and manufacturing transformation and upgrading 并列题名：Research on the key issues of China's industrial transformation and upgrading 并列题名：Study on China's enterprise innovation and industrial transformation and upgrading 并列题名：Influence and countermeasure of producer services agglomeration on manufacturing transformation and upgrading in western China 并列题名：Producer service import and manufacturing upgrading Influence and countermeasure of producer services agglomeration on manufacturing transformation and upgrading in western China 并列题名：Research on the evaluation and influencing factors of manufacturing industry transformation and upgrading in China Research on the key issues of China's industrial transformation and upgrading 并列题名：Research on the interaction between urbanization and industrial transformation and upgrading in China