The spontaneous combustion of coal seam endangers the safe production.
井下煤层自燃严重危害着安全生产。
Spontaneous combustion of coal seam poses great hazards to safety mining operations.
煤层自燃发火是煤矿安全的大敌。
The spontaneous combustion of coal seam is one of the major problems in safe production of coal mine.
煤层自燃问题一直困扰着我国煤矿的安全生产。
The spontaneous combustion of coal seam is one of the major calamities in safe production of coal mine.
煤层自燃问题是影响煤炭生产安全的最主要灾害之一。
However the study of the spontaneous combustion of coal seam causing surface subsidence deformation is very little, so the paper tries to study the problem.
然而煤层自燃引起的地表移动变形研究在国内外涉及很少，为此本论文对该问题进行了一定的探索和尝试。
This way can be used not only in the field of spontaneous combustion risk assessment in coal seam, but also in simulation before designing.
提出一种用专家系统的不精确推理来得出评估结果的新方法，此方法可以应用于煤层的评估及矿井设计前的模拟。
Methods to define the laneways loose zone of thick coal seam with enriched gas and spontaneous combustion is studied in the article and define the rational the length of sealed borehole.
研究了铜川矿务局下石节煤矿高瓦斯油气共生易自燃厚煤层巷道松动圈的范围，确定合理封孔长度。
Spontaneous combustion of a coal seam was mainly caused by oxygen in leaked air.
矿井煤层自燃主要是由于漏风供氧引起的。
Spontaneous combustion of a coal seam was mainly caused by oxygen in leaked air.
矿井煤层自燃主要是由于漏风供氧引起的。
应用推荐