“动画+”：中国影视动画产业转型升级研究：research on transformation and upgrading of China's animation industry research on transformation and upgrading of China's animation industry 全球战略：中国油气产业国际化研究：research on internationalization of China's oil-gas industry Research on transformation and upgrading of processing trade Transformation and upgrading of China's manufacturing industry = Research on the influence of FDI on the transformation and upgrading of Beijing manufacturing industry Research on the transformation and upgrading of urban characteristic industries Research on transformation and upgrading of China's processing trade enterpises