“two step mining”的概念、定义、翻译、参考文献-科学参考

单词	two step mining
释义	two step mining Encyclopedia 工学回采工艺释 two step mining两步骤回采在回采过程中，将采区或矿块划分为矿房和矿柱，第一步骤回采矿房，第二步骤回采矿柱的回采方式。
随便看	Principia principia ethica principle Principle and Adaptability Principle and Application of Digital Television Broadcasting principle and contingency principle component analysis principle component loading and loadings plot principle component score and scores plot principled negotiation principle error of laser interferometer Principle Ethics principle isotope principle of Abbe's imaging principle of abstraction principle of action and reaction principle of action at a distance principle of adjusting temperature and humidity by ventilation principle of administrative emergency principle of a legally prescribed punishment for a specified crime principle of antisound principle of architecture design principle of argument principle of attenuation of correlation principle of attenuation of correlations

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