This paper discussed the evolvement characteristics of sand bodies of the fourth coal bearing interval and its influence on No. 13-1 coal-seam thickness in Huainan coal field.
讨论了淮南煤田第四含煤段砂体的演化特征及其对13- 1煤层厚度的影响。
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。
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。
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