学术探索 已发表论文  版本 2 Vol 2 (5) : 398-405 2017 
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合作专利分类体系(CPC)与国际专利分类体系(IPC)的映射西元红河棋牌
The Mapping Analysis Between the Cooperative Patent Classification System (CPC) and the International Patent Classification System (IPC)
: 2017 - 07 - 28
: 2017 - 10 - 13
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