Make an analysis and approach on the problems of bolting and shotcreting in rock roadway construction, the methods of improving the support result are provided and have made good result.
英
美
释义
总结了岩巷掘进推广应用“三小”的情况和在提高单进、降低掘进成本等方面取得的经济效益,提出了存在问题和建议。
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