Check Hole Making Technique in Colliery Shaft
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引用本文: | 耿建国. 煤矿井筒检查孔施工技术[J]. 钻探工程, 2005, (3): 50-51,53. doi: 10.3969/j.issn.1672-7428.2005.03.019 |
Citation: | GENG Jian-guo. Check Hole Making Technique in Colliery Shaft[J]. DRILLING ENGINEERING, 2005, (3): 50-51,53. doi: 10.3969/j.issn.1672-7428.2005.03.019 |