texture of coal seam

Points out that the coal seam thickness, coal seam texture and coal mass structure are not only changed but also the degree of coalification is increased and the coal ash is added by bedding slip structure.

指出了层滑构造不仅使煤层厚度、煤层结构和煤体结构发生变化，而且使煤层的煤化程度提高、灰分增加。

互联网摘选