coal mining bureau是什么意思

用法例句

Kaiping Mining Administration and the Rise of Modern Tangshan;

开平矿务局与近代唐山的兴起

The paper introduces the producing technique and experience for realizing high production and high efficiency by using fully mechanized sublevel caving mining method in Dayan Mining Administration.

介绍了大雁矿务局应用综采放顶煤技术实现矿井高产高效的生产技术经验，进行了经济技术分析，以及与其它开采方法的经济效益对比，并提出了存在问题及改进措施。

Experience of Development Resource Comprehensive Utilization in Fengfeng Mining Administration;

峰峰矿务局发展资源综合利用的经验

Feasibility Study on the Optimization and Strengthening of Coal Business by Songzhao Mining Bureau;

松藻矿务局做优、做强煤炭产业的可行性研究