支架的合理工作阻力应是 ______ 与“ ______ ”的代数和。 -题库考试答案搜索网

支架的合理工作阻力应是与“ ”的代数和。

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2021-09-02 15:22

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顶板压力@#@ 由于支架围岩相互作用所引起的附加力

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标签：联大河南理工大学矿山测量学

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