Research on the use mechanism of intellectual property in China's remanufacturing industry Research on the declining proportion of China's manufacturing industry Measurement and influence mechanism of value added exports in China’s manufacturing industry Research on the contribution of value added tax of China's manufacturing industry Research on the influence mechanism of intellectual property protection on enterprise innovation performance Research of circular economy capability in Chinese manufacturing industry Research on the excess capacity over Chinese manufacturing industry 并列题名:Measurement and influence mechanism of value added exports in China’s manufacturing industry Research on evolution mechanism of intellectual property management system from multi-agent perspective Research on the theory and practice of intellectual property insurance in China