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- Coal workings line the route in this hilly, washed out section. 煤矿内巷道位于这个多坡的被水冲蚀地区的道路两旁。
- Coal workings line the route in this hilly,washed out section. 煤矿内巷道位于这个多坡的被水冲蚀地区的道路两旁。
- Excavate coal is primary production link in coal mine production, therefor, Weaving excavate coal working face supersedure plan has instructional meaning. 采煤是煤矿生产中的主要生产环节,因而编制采煤工作面接替计划对煤矿生产具有指导性意义。
- Based on a grey control system, the coal working face blasting model of open pit mine in the paperin order to control the coal size optimizely is presented in this paper. 分析了岩体弱面对掏槽效果和破碎块度的影响,从而提出相应的布孔方法,对指导爆破施工、设计有实际指导意义。
- A coal miner's work is not a bed of roses. 煤矿工人的活计可不轻松。
- 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。
- 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。
- 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。
- They eked out their coal by collecting firewood. 他们拣拾木柴以补充煤的不足。
- We had a big delivery of coal today. 今天我们收到大批订购的煤。
- Coal miners have to work under the ground. 煤矿工人须在地下工作。
- multidrill cutting coal working face 多孔钻式割煤机
- Pile on more coal the fire is going out. 火快灭了，再加上些煤。
- What can we do with the bituminous coal? 这些烟煤可以用来做什么？
- My grandfather used to work in a coal mine. 我祖父曾在煤矿工作过。
