并列题名：Firm multiple heterogeneity and export competitiveness of Chinese manufacturing industries Firm multiple heterogeneity and export competitiveness of Chinese manufacturing industries 并列题名：Study on the heterogeneity of competitiveness and export trade of Chinese manufacturing enterprises 并列题名：Geographical concentration and agglomeration of Chinese manufacturing industries 并列题名：Research on the competitiveness of advanced manufacturing industry 并列题名：Open & indigenous innovation and the enhancement of international competitiveness of China's manufacturing industries 并列题名：Rresearch on technical standard and international competitiveness of China manufacturing industry 并列题名：Research of fiscal policy on promoting the market competitiveness of equipment manufacturing industry in China Open & indigenous innovation and the enhancement of international competitiveness of China's manufacturing industries Geographical concentration and agglomeration of Chinese manufacturing industries