- 双语例句
The calculation on working resistances of supports has been one of key research questions sublevel caving.
支架工作阻力计算是综放开采研究的主要问题之一.
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Analyses factors that affect cover caving ability of roof coal in sublevel caving mining method.
分析了放顶煤开采顶煤冒放性的影响因素.
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Sublevel caving without sill pillar is used in Xishimen Iron Mine.
西石门铁矿采用无底柱分段崩落采矿法开采.
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They are both composed of swarms of sublevel things.
它们都是由大量的亚层次物质组成的.
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Furthermore, its tech - economic indices are compared with those of the sublevel open stope method.
并将技术经济指标与分段空场法加以比较.
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The experimental study of sublevel stoping with tail filling and pre controlling of roof was introduced.
介绍了河东金矿预控顶分段空场尾砂充填采矿法试验研究.
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This paper introduced the test study of upward sublevel filling method in this mine.
本文主要介绍了上向分段胶结充填采矿法在该矿的试验研究.
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