Within the north structure block, with the influence of the thin seam thickness, the thickness of the structure coal seam was relevantly thin.

在北部构造区内受煤层厚度较薄的影响，构造煤厚度相对较薄。

It can cuts the whole seam height in one trip, and accommodate the changing of seam thickness and floor undulation.

它可以一次采全高，并且能适应煤层厚度变化和底板起伏不平的条件。

The seam thickness change is one of the main factors effected on coal mining.

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。

Reasonable down from feeding mechanism to ensure that does not wrinkle when sewing thin, continuous line when the seam thickness.

合理的倒、顺送料机构确保缝薄时不起绉，缝厚时不断线。