求翻译：如刘明霞利用2002—2007年省际面板数据研究了中国对外直接投资的短期与长期逆向技术溢出效应结果表明，短期内中国对外直接投资对总专利、发明和实用新型专利申请有显著的逆向溢出，而长期内只对技术含量较低的外观设计专利申请有显著的逆向溢出。是什么意思？

2002-2007 inter-provincial panel data study of China's foreign direct investment in short-term and long-term reverse technology spillover effect results show that the short term, China's foreign direct investment in total patents, inventions and utility model patent application have a significant ad

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If the Liu Ming rosy cloud used 2002-2007 year interprovincial kneading board data to study the Chinese foreign direct investment short-term and the long-term reversion technology overflow effect result indicated that, in the short-term the Chinese foreign direct investment to the total patent, the

正在翻译，请等待...

正在翻译，请等待...