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单词 cover caving
释义
cover caving
  • 简明释义
  • 顶板崩落;放顶
  • 网络释义
  • 双语例句
  • 1
    Analyses factors that affect cover caving ability of roof coal in sublevel caving mining method.
    分析了放顶煤开采顶煤冒放性的影响因素。
  • 2
    The paper discusses the roof coal breakage principle, deformation breakage and retrieval law and analyzes factors affecting cover caving ability.
    论述了综放开采的顶煤破碎机理、变形破碎及回收规律;
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更新时间:2026/3/8 2:44:51