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。
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