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- coal under villages 村庄压煤
- Ground building is wrecked by ground coal mining under village. 村庄下压煤开采,造成地面房屋破坏。
- Ground building is wrecked by compressed coal mining under village. 村庄下压煤开采,造成地面房屋破坏。
- coal under village 村庄压煤
- Gas seepage characteristics in coal under alternating electric field (AEF) have been studied. 对交变电场作用下煤瓦斯渗流特性进行了实验研究。
- Feasibility of strip mining method applied to coal caving mining under villages 条带法实现村庄下放顶煤开采的可行性
- The empiric function can depict the dynamic deformation behavior of gassy coal under the action of porous pressure and make the numerical analysis approach actual condition more closely. 该经验函数能较好地描述含气煤体在孔隙压力作用下的力学变形性态，使固气耦合问题的数值分析更逼近实际。
- The paper illustrates the comparison test made on industrially often used sodium silicate and hexametaphosphate as a depressant for preparation of clean coal under same lab test condition. 采用太西煤制备洁净煤,在相同实验室试验条件下,分别利用工业上较为常用的抑制剂水玻璃和六偏磷酸钠作抑制剂进行对比试验,结果表明,六偏磷酸钠的抑制效果明显优于水玻璃。
- Rapid pyrolysis of five kinds of Chinese pulverized coals under the different conditions of coal reburning was systematically investigated in an entrained flow reactor (EFR). 利用携带流反应装置，研究了煤粉在高温烟气环境中热解时的质量损失和C、H、N元素释放特性，采用扫描电镜和氮吸附方法观测了煤焦的显微结构、比表面积和总孔容积。
- Discrete Simulation of Partial Extraction under Villages 村庄下压煤条带开采的离散元模拟
- 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。
- STUDY ON ROOF CAVING MINING OF COAL UNDER WIRE MESH 金属网下综采放顶煤工艺研究
- searching coal under red stratum 红层下找煤
- output of coal under unified central planning 统配煤产量
- We need to replenish our stocks of coal. 我们需要再次补充煤的储备。
- pressing coal under river and railway 石头河及铁路压煤
- 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。
