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- residual coal auxiliary 余煤处理装置
- The State shall encourage coal mining enterprises to carry out second mining or extract residual coal at the margins of mining areas and very thin coal seams. 国家鼓励煤矿企业进行复采或者开采边角残煤和极薄煤。
- Effective recovery of residual coal was realized by controlling centralized stress of wedge pillar in gob and rational equipment match of recovery mining face. 通过对刀柱老采区煤柱集中应力的控制,以及复采工作面装备的合理配套,实现刀柱下遗留煤体的有效回收,提高煤炭资源采出率,增加企业经济效益。
- Mining Method of Residual Coal Seam in Small Coal Mine 小煤矿复采残采煤层采煤方法
- Extracting the residual coal with the method of whirling face 旋转调面法回采边角残煤
- Reconstruction of Single-bucket Lifters for Residual Coal of a Coke Oven 焦炉余煤单斗提升机改造
- 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。
- 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？
- A coal fell from the fire and burned the mat. 一块煤炭从火中掉出来，烧坏了地席。
- The country is rich in oil and coal. 这个国家石油和煤的资源丰富。
