“graded-tailings filling system”的概念、定义、翻译、参考文献-科学参考

单词	graded-tailings filling system
释义	graded-tailings filling system Encyclopedia 工学矿山充填系统释 graded-tailings filling system分级尾砂充填系统以分级后的粗粒级尾砂作为主要充填材料制备充填料浆并输送到井下采空区进行回填作业的矿山生产设施。
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