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Engineering geology
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系石
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岩石坚固性系数
rock solidarity coefficient
岩石质量系数
rock quality index
岩石软化系数
softening coefficient of rock
石灰系深层搅拌法
lime deep mixing method
石炭-二叠系
Permo-Carboniferous system
石炭-二叠系
Permo-Carboniferous
矿石硬度系数
mineral hardness factor
砂石料加工系统
aggregate preparation system
钙碱性岩石系列
calc-alkali rock series
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