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- secondary coal recovery 煤二次开采
- It is key problem to raise the top coal recovery rate of the fully mechanized sublevel caving mining. 提高顶煤放出率是综放开采的一个重大课题,预注水弱化顶煤是解决这一问题的有效方法之一。
- CAO Yu-xunThe clean coal recovery has increased by 6.8% at Shenhua Group Co. through the recovery of clean coal lost in middlings by using middlings rewash system. 神华集团乌达矿业公司凯鸿煤化有限责任公司通过增加中煤再洗系统;回收中煤中损失的精煤;从而使精煤回收率提高了6.;8%25。
- Applying the methods put forward in this paper, it was explanted that the basic relevant relations between the coal recovery an earth surface sink, regarding the Shendong mining area as the case. 应用本文提出的方法，以神东矿区为案例，说明了开采回采率和地表沉陷的基本相关关系。
- Ways of raising coal recovery rate in mire 提高矿井煤炭回采率的途径
- coarse granule coal recovery system 粗颗粒煤回收系统
- Keywords coal washery;secondary coal;moisture analysis; 选煤厂;洗精煤;水分分析;
- Influence of Gob Shield Angle on Top Coal Recovery Ratio 综放支架掩护梁角度对顶煤回收率的影响
- Keywords millisecond blast;coal recovery rate;roof management; 毫秒爆破;煤炭回收率;顶板管理;
- Her age is of secondary interest. 她的年龄不太重要。
- comprehensive mechanization caving the roof coal recovery 综放回收率
- We need to replenish our stocks of coal. 我们需要再次补充煤的储备。
- In secondary school, children get more advanced knowledge. 在中学，孩子获得更深一些的知识。
- She piled on more coal before the fire go out. 在火熄灭之前她又加上些煤。
- A secondary matter; a side issue. 次要的第二位的事; 较次要的问题
- 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。
- A secondary mine passageway between two main shafts or tunnels. 次要矿山甬道矿井中连接两条大隧道的小巷道
- He put a shovel of coal on to the fire. 他往火炉里加了一铲煤。
