
基于专利技术和应用二维框架的竞争对手识别研究*——以DHA技术为例
周洪1,2,3,魏凤1,2,3,孙玉琦1,2,3
基于专利技术和应用二维框架的竞争对手识别研究*——以DHA技术为例
Research on Competitor Identification Based on Two-Dimensional Framework of Patent Technology and Application:Take DHA Technology as an Example
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