overall thickness of coal seam 煤层总厚度
total thickness of coal seam 煤层总厚度
Influence of Coal Seam Thickness 煤层厚度的影响
thickness of the coal seam 煤层厚度
Combining with the production data, grey GM (1, 1) model is used to predict deep thickness of coal seam in Moxinpo.
利用灰色GM(1,1)模型，结合生产资料对磨心坡深部煤层厚度进行预测。
The coal and gas outburst became more and more dangerous along with the thickness of coal seam changing and increasing.
煤的厚度越大、煤厚变化程度越大的地区煤与瓦斯突出危险程度越大。
The structural deformation is the principal geological factor that affects the thickness variation of coal seam on a mine field scale.
构造作用是控制井田范围内煤层厚度变化的主要地质因素。
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