this paper gives the analysis of the physical and chemical capacity of coal gangue in xuzhou district and introduces the quality requirements of coal gangue which is good as the filling materials of highway sub grade
对徐州地区煤矸石的理化性能进行了分析，介绍了作为公路路基填筑材料的煤矸石的质量要求
以上为机器翻译结果，长、整句建议使用 人工翻译 。