PDF(1696 KB)
PDF(1696 KB)
PDF(1696 KB)
露天转地下充填法开采护顶矿柱防渗性研究
({{custom_author.role_cn}}), {{javascript:window.custom_author_cn_index++;}}Anti-seepage Measures for Crown Pillar Extraction in Transition from Open-Pit to Underground Mining by Backfilling Method
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