英语词汇pillar extraction怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	pillar extraction
释义	pillar extraction 简明释义煤柱回收网络释义 1 ?煤柱回收煤柱回收(pillar extraction), 此释义来源于网络辞典。 2 ?矿柱回采矿柱回采短语 1 pillar extraction drilling 煤柱回采钻眼 2 The mine commenced pillar extraction 排雷的支柱开始提取 ; 矿井展开支柱提取 ; 该矿展开支柱提取 ; 矿开始的柱子提取 3 Three pillar extraction panels 三大支柱提取板 ; 三个支柱提取面板 ; 三个支柱开采板双语例句 1 The pillar extraction practice has proved the correctness of the test results of similarity model. 矿柱回采的实践证明了相似材料模型试验结果是正确的。 2 The accurate awareness of actual pillar boundary is the basis for the blast design for pillar extraction and is also one of the effective ways to improve the mine economic benefit. 准确掌握矿柱实际边界是矿柱回采爆破设计的基础，也是提高矿山经济效益的有效途径之一。 3 Based on the stress analysis of filling body, it was pointed out that reducing the destructive function of blasting on the filling body is one of the technical keys in ore pillar extraction. 通过对充填体受力分析，指出减小爆破对充填体的破坏作用是矿柱回采的技术关键之一。
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