This paper expounds the stratum distribution situation of the area of the coal yard from above down, probes into the design scheme of the circularcoal yard, and analyzes the general expenses.
阐述了圆形煤场区域从上而下的地层分布情况，探讨了圆形煤场设计方案，并分析了各项费用情况。
2
"Coal marketing office issued a" Circular on further strengthening product coal quality management notice ", defined the responsibilities of each unit personnel."
煤质运销处下发了《关于进一步加强商品煤质量管理的通知》，明确了各单位人员的职责。
3
Zhao Peng high in his speech, spoke highly of Datong Coal Mine Group to develop circular economy practices and achievements.