风氧化煤顶板下行走支架安全回撤应用技术研究

Publisher: 国家哲学社会科学学术期刊数据库

E-ISSN: 1008-8881|29|2|21-23

ISSN: 1008-8881

Source: 山西能源学院学报, Vol.29, Iss.2, 2016-01, pp. : 21-23

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Abstract