基于物质-场模型分析的专利规避设计研究顶驱下套管装置的专利规避设计
Publisher: 国家哲学社会科学学术期刊数据库
E-ISSN: 1000-7695|volume|6|168-172
ISSN: 1000-7695
Source: 科技管理研究, Vol.volume, Iss.6, 2017-01, pp. : 168-172
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Abstract