基于专利分析的美国第四代航空发动机技术创新研究

Publisher: 国家哲学社会科学学术期刊数据库

E-ISSN: 1009-8623|32|2|36-41

ISSN: 1009-8623

Source: 全球科技经济瞭望, Vol.32, Iss.2, 2017-01, pp. : 36-41

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Abstract