“采煤概论”教学改革研究

Publisher: 国家哲学社会科学学术期刊数据库

E-ISSN: 1008-3871|26|6|71-73

ISSN: 1008-3871

Source: 榆林学院学报, Vol.26, Iss.6, 2016-01, pp. : 71-73

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Abstract