drift coal 中文意思是什麼
drift coal
解釋
漂積煤;移積煤-
Practices on bolt, mesh, anchor and beam support in coal drift under unstable roof condition of cataclastic rock mass
不穩定頂板煤巷錨網索梁支護實踐 -
Fenmeihui from drift - chu, iron, powdered coal in the comprehensive development and utilization
粉煤灰提取漂珠,鐵粉,粉煤在綜合開發與利用。 -
Application of controlled blasting in drivage of coal - rock drift
在半煤巖巷道掘進中的應用 -
Numerical simulation of distribution regularities of dust concentration during the ventilation process of coal drift driving with exhaust ventilation
抽出式通風煤巷掘進過程中粉塵濃度分佈規律的數值模擬 -
Combined support system applied to mine 1 coal drift in liyuan coal mine
聯合支護在梨園礦二1煤層巷道中的應用 -
Roof supporting of thick coal drift in sitai mine
四臺礦厚煤層綜采順槽及切眼頂板支護問題探討 -
Numeric analysis of the gas emission lengths of coalwall in the coal drift
煤巷瓦斯預排深度數值模擬分析 -
Anchor belt net and cable support technique in coal drift of combined roof with coal
含煤復合頂板煤巷錨帶網索梁支護技術
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