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- Wennan colliery of Xinwen Coal Mining Group is an old coalmine and is mining deep coal layer. 汶南煤矿是新汶矿业集团进入深部开采的老矿井。
- Study and Application for Supporting Mode of Main Roadway in Deep Coal Mine 深井主要巷道支护方式的研究与应用
- They are ventilating the sap of a coal mine. 他们正在使煤矿坑道通风。
- That coal mine is no longer worked. 那个煤矿已经不经营了。
- Study and practice of bottom slicing relieving mining in condition of trouble coal seams with high ground stress under deep coal mine 深井高应力难采煤层上行卸压开采的研究与实践
- DESIGN PRINCIPLE FOR TRUSS-BOLT SYSTEM AND ITS APPLICATION TO DEEP COAL MINE ROOF REINFORCEMENT 深部矿井锚拉支架设计理论及应用
- Effect of quality of fly - ash to the property of heat - insulating material used on channel of deep coal mine 粉煤灰品质对深井巷道隔热材料性能的影响
- Coal mining has always been a dangerous occupation. 采煤向来是一种危险职业。
- General bituminous coal mining; Motor freight. 一般烟煤开采;汽车货运。
- They underwrote the coal mine's bonds. 他们同意买下该煤矿的未认购的股票。
- The landscape was destroyed by coal mining. 自然景观由于挖煤而受到了破坏。
- There is a coal mine near my home town. 我的家乡附近有一个煤矿。
- Jiamusi Coal Mining Machinery Co. 和佳木斯煤矿机械有限公司。
- XUZHOU COAL MINING GROUP CO., LTD. 江苏徐州矿务集团有限公司。
- A coal mining boom has swept across north China. 煤炭行业的繁荣,在华北到处可见。
- Heilongjiang Coal Mining Machinery Group Co. 宣布,已向国有黑龙江煤矿机械集团有限公司。
- The coal mining area is in the center of the basin. 煤矿区位于盆地的中心。
- Township enterprises mainly in coal mining. 乡镇企业以开采煤炭为主。
- Scope: Coal mining. Coal mining. 经营范围:开采原煤。
- It has important guidance effect and actual meanings in determining the strip mining method for excavating deep coals under buildings. 对确定建筑物下深部压煤是否采用条带法开采,具有重要的指导作用和实际意义。