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1990-2020分省绿色专利申请及获得数量

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hnq932044 发表于 2022-2-18 14:53

1990-2020分省绿色专利申请及获得数量

绿色专利制度是为了应对气候变化问题。针对绿色技术的特点。通过对专 ...已买

1990-2020分省绿色专利申请及获得数量

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