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Terms for subject Engineering geology containing 系石 | all forms
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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