The typical building of coal mine - mine shaft well tower - often airtight container.
煤矿的标志性建筑 —— 矿井井塔,常常采用密闭型的箱型基础.
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Mine - shaft of downhole mining is plugged in the middle of borehole to break off the production.
井下采矿的运输溜矿井在溜矿过程中常会被卡堵,中断生产.
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The paper presents a method of solving difficulty for the mine shaft hoists specific overload starting.
提出了解决矿井提升机特殊过负荷起动困难的方法.
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Cage bushing is the important part of the flexible guidance of coal mine shaft.
罐笼衬套是煤矿竖井柔性导向的重要部件.
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