PDF(4936 KB)
PDF(4936 KB)
PDF(4936 KB)
中国专利知识空间的演化与高级化研究——基于知识相关性的视角
({{custom_author.role_cn}}), {{javascript:window.custom_author_cn_index++;}}Research on the evolution and upgrading of China's patent knowledge space:From the perspective of knowledge relatedness
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