Some kinds of genesis patterns of the seam thickness variation caused by bedding slip structure are analyzed and the forming reason of the coal parameter variation are expounded.
分析了层滑构造引起煤厚变化的几种成因方式，解释了煤质变化的形成原因。
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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