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基于专利计量的谷物收割机技术竞争态势分析

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Affiliation of Author(s):33000

Journal:中国农业大学学报

ISSN No.:1007-4333

Translation or Not:no

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张宗毅

Gender:Male Education Level:With Certificate of Graduation for Doctorate Study Degree:doctor Status:在本单位任职 School/Department:中国农业装备产业发展研究院

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