求翻译：位于剪切带的煤层受顶、底板滑动的剪切作用时，产生一组斜交于滑面的剪裂面，在剪裂面两侧的煤体发生不同程度的错落滑移，使煤体结构和煤层厚度发生变化。这种类型煤层的顶、底板基本平行，煤层内仅仅是一组斜交于层面(滑面)的剪裂面。因此．煤层的厚度虽变薄，但原生构造如层理仍断续分布。是什么意思？

In the shear zone of the seam by top backplane slip shearing, resulting in a set of bias in the shear and fracture surface of the slide surface, varying degrees of scattered shear and fracture surface on both sides of the coal body slip, so that the coal body changes in structure and thickness of co

In the cut with the top of the seam, the slide plate cut role, a group of oblique to the slide surface from getting torn apart, cut in the side of the coal occurs in varying degrees of slip, flailing the coal seam thickness and structure changes. This type of seam top and bottom plate, and basic par

Is located the shear zone the coal bed when goes against, the ledger wall glide shear action, produces a group oblique in the sliding face to cut the fracture, is cutting the fracture both sides the coal body to have the varying degree scattered about slipping, causes the coal body structure and coa

In the shear zone of coal seam roof, base plate when sliding shear, results in a set of inclined crack in the sliding surface of the cut surface, in different degrees of shear fracture occurs on either side of the coal's wrong fall slip, to vary the thickness of coal structure and coal seams. This t