The deformation characters of the broken rocks are the important factors that affect the roof caving and surface subsidence above goaf in coal mining.
破碎岩石的变形性质是影响采空区覆岩垮落与地表沉陷的重要因素。
The deformation characters of the broken rocks are the important factors that affect the roof caving and surface subsidence above goaf in coal mining.
破碎岩石的变形性质是影响采空区覆岩垮落与地表沉陷的重要因素。
应用推荐