张庄矿-210大桥煤柱锚固控制顶板无人工作面扒装采煤法的设计研究
장장광-210대교매주묘고공제정판무인공작면배장채매법적설계연구
The design and research for scraping mining in the unmanned controlled face of 210 bridge coal pillar anchoring roof at Zhangzhuang Mine
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