Coal mining method and technics are core of high production and efficient mine's building.
采煤方法及工艺是高产高效矿井建设的核心。
The result was applied to the practice of short-wall mining under villages of Wuyang mine to achieve the safe and high-efficient exploitation and control the mining subsidence effectively.
研究结果应用于五阳煤矿村庄下采煤实践，实现了安全、高效开采，并有效控制了地表沉陷。
The practice on sublevel combined mining in steep seam is approached and the advantage of it is analyzed. It is an efficient way to realize the high efficiency production in steep seam in coal mine.
介绍了急倾斜煤层小阶段联合开采的实践与探索，分析了小阶段联合开采的优越性，认为该方法是实现急倾斜矿井高产高效的有效途径。
The sequential pattern is a very useful knowledge one in time related databases, and it is very important to find out high efficient algorithm of mining it.
序贯模式是时间相关数据库中存在的一种十分有用的知识模式，其发掘方法的研究有着十分重要的意义。
The ventilation system provides a new method to realize the safe and efficient mining of high gas longwall mining with sublevel caving.
这一通风系统可为其他高瓦斯综放面安全高效开采提供了一条新的技术途径。
In combination with the boundary conditions of open-pit and the development system of the underground mining transferred from open-pit, a high efficient induced caving method is proposed.
结合露天开采的边界条件与露天转地下开拓系统条件，提出诱导冒落法高效开采方案。
In combination with the boundary conditions of open-pit and the development system of the underground mining transferred from open-pit, a high efficient induced caving method is proposed.
结合露天开采的边界条件与露天转地下开拓系统条件，提出诱导冒落法高效开采方案。
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