煤矿掘进支护问题及应对方法探讨
Publisher： 国家哲学社会科学学术期刊数据库
E-ISSN： 1008-8881|28|3|1-2
ISSN： 1008-8881
Source： 山西能源学院学报, Vol.28, Iss.3, 2015-01, pp. : 1-2
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Abstract