它的出现促进了振动出矿这一先进技术在采场中的广泛应用。

The good flexibility of this mobile has machine promoted widespread use of the vibration drawing technology in stope extraction.

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采用无底柱分段崩落采矿法，国内外一直采用截止品位放矿法来控制出矿。

Cut-off grade method has been used to control the ore drawing in non-pillar sublevel caving mining both in and outside China.

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研究结果表明，随着台阶高度的增加，采出矿岩平均运输功含量呈下降趋势。

The research result showed that the average transport work content of ore and rock in open-pit decreases as bench height increasing.

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