开采强度法 mining intensity method 地下径流模数法 modulus method of groundwater runoff ..
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开采强度法
Mining intensity method
以上为机器翻译结果,长、整句建议使用 人工翻译 。
对于急倾斜极薄矿脉的开采国内外最常用的采矿方法是浅孔留矿法,实践表明,该法存在人工劳动强度大、矿石贫化率高等缺点。
Through an exploratory survey of residual deposit in the sourthern zone of a copper ore mine, inclined thin veins with difficult occurrence and complicated mining conditions were discovered.
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