cover caving 中文意思是什麼

cover caving 解釋
頂板崩落
  • cover : vt 1 覆蓋，遮蔽，包裹；戴帽子；包庇，隱蔽，掩蓋；滅跡，（用紙）表（墻）。2 孵（小雞）；（種馬）交...
  • caving : 岸崩
  1. Application of mining method with - beam cover caving in shannan colliery

    型梁放頂煤採煤法在山南井的應用
  2. On the cover caving in the sublevel caving of slightly dipped thick orebody

    緩傾斜厚礦體無底柱分段崩落法放頂方式探討
  3. Destructive study of the cover rock relating to the fully mechanized mining with caving method under ravelly ground and nappe

    鬆散層及推覆體下綜放開采覆巖破壞研究
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