Research on the transformation and upgrading path of China's manufacturing industries under multiple constraints 并列题名：Research on the transformation and upgrading path of China's manufacturing industries under multiple constraints Research on transformation and upgrading of manufacturing industry cluster in China 并列题名：Research on transformation and upgrading of manufacturing industry cluster in China Research on the Transformation and Upgrading of Traditional Manufacturing Enterprise under the Background of Intelligence Research on the transformation and upgrading of China's marine industry Research on the transformation and upgrading of urban characteristic industries Research on transformation and upgrading mechanism and path of manufacturing industry in western China Path and mechanism of the transformation and upgrading of China manufacturing industry under environmental regulation Research on the high quality development path of China's manufacturing industry under the new global changes