工作面直接过陷落柱的盐酸软化法及其试验研究
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Experimental study on coal face direct passing collapse column by hydrochloric acid softening method
ZHAO Guo-fei, KANG Tian-he, YANG Yong-kang, GUO Jun-qing, ZHANG Wen-yang
采矿与安全工程学报
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2014, (1): 97
-101
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