英语词汇“礦柱”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	礦柱
释义	礦柱 kuàng zhù∶矿井中支承井顶的木柱mine prop；prop∶在矿井中留下作为支架的矿石的或煤的长柱pillar；rib矿柱
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