基于专利分析的智能农机产业区域技术创新竞争力测度
刘伟 , 刘元元
Research on the measurement of regional technological innovation competitiveness on intelligent agricultural machinery industry based on patent analysis
Liu Wei, Liu Yuanyuan
中国农机化学报
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2024, (9): 311
-317
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DOI: 10.13733/j.jcam.issn.2095-5553.2024.09.047
