Millisecond delay technology of high step and deep hole is the first application in China, it offers a realistic method for high step exploitation of middle and small scale limestone mine.
高台段深孔孔内微差爆破技术在我国的首次应用，为中小型石灰石矿山高台段开采提供了切实可行的方法。
Implementation of the technology, an effective solution to the exploitation of the mine problem areas of irregular shape and improve resource recovery.
实施该项技术，有效解决了矿井不规则形状区域开采的难题，提高了资源回收率。
They adopt the cutting principle of diamond disk sawing for the boards, while applying the diamond cutter's high speed sawing technique to the exploitation of mine stone.
它借签圆盘金刚锯切割加工板材的原理，它将金刚石刀具高速切割技术直接应用在矿山石材荒料的开采。
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