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- coal drift junction 煤巷交岔点
- In the drivage of the coal drift in the Zhangji coal mine, most of the coal drift is revealed to be composite roof. 在中厚煤层复合顶板条件下,合理确定小煤柱尺寸及巷道支护参数,可提高煤炭回收率,保证巷道正常掘进和在服务期间内的使用。
- Roof supporting of thick coal drift in Sitai mine 四台矿厚煤层综采顺槽及切眼顶板支护问题探讨
- Method of Coal Drift Heading through Fault 煤巷掘进过断层方法
- Optimize the Construction Technique of Coal Drift Bolt Support 煤巷炮掘锚杆支护施工技术优化
- Numerical Simulation of the Excavation Sequence in Long-Span Full Coal Drift 大跨度全煤巷道开挖顺序数值模拟研究
- Role of Crossing Layer Gas Drainage Technology in Driving Coal Drift 穿层抽放在煤巷掘进中的作用
- Application of Bolt Support in the Reserved Coal Drift in Mining Pressure Area 煤巷锚杆支护在动压区留巷的实践应用
- We need to replenish our stocks of coal. 我们需要再次补充煤的储备。
- She piled on more coal before the fire go out. 在火熄灭之前她又加上些煤。
- Bolting with wire mesh technique in deep full coal drift at Dongtan colliery 东滩矿深部全煤巷道锚网支护研究
- I add the coal on the flame continuously. 我不断朝火里添加煤炭。
- They are ventilating the sap of a coal mine. 他们正在使煤矿坑道通风。
- Prohibition was laid on the export of coal. 禁止煤炭输出。
- Choose on Driving-blasting Parameter in Working Face Coal Drift with Caving 放顶煤工作面煤巷掘进爆破参数的选定
- He put a shovel of coal on to the fire. 他往火炉里加了一铲煤。
- That coal mine is no longer worked. 那个煤矿已经不经营了。
- We have enough coal to see the winter out. 我们有足够的煤过冬。
- Clever Idea of Showing Position in the Coal Drift Excavation Process 煤巷掘进过程中确定方位的新思路
- They eked out their coal by collecting firewood. 他们拣拾木柴以补充煤的不足。
