dirt band 中文意思是什麼

dirt band 解釋
冰川上的凍土
  • dirt : n 1 污物；爛泥；油垢；灰塵。2 泥土；土地；【礦物】含金土。3 毫無價值的東西。4 骯臟，下賤，卑鄙。5...
  • band : n 1 帶，繩；帶形物；箍；箍條；嵌條；鑲邊；鋸條； 〈pl 〉 （法官等的）寬領帶。2 束縛，羈絆；義務；...
  1. Sub - level caving mining with seam of thickness dirt band

    含厚夾矸煤層的綜放開采
  2. It was found that comparing with the case without dirt band the periodic weighting distance, median roof moving coefficient and support resistance all increased to different extent because of the influence of dirt band

    發現由於夾矸的影響，與不含夾矸層工作面相比，其周期來壓步距、平均動壓系數和支護阻力都有不同程度的增大。
  3. The in - situ measurement and analysis of support resistance and top - coal movement in fully - mechanized top - coal caving face of a thick coal seam with dirt band had been carried out in some coal mine, the strata behavior and movement law of top - coal were revealed

    摘要對某煤礦含夾矸煤層綜放面的支架工作阻力和頂煤移動進行了現場觀測和分析，揭示了其礦壓顯現和頂煤運移的規律。
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