Disclosed is a rigid boring cutter for machining a slender hole.

一种加工细长孔的刚性镗刀。

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This paper introduced construction technique of the inverted vertical line survey system, boring, hole slope measuring, slope correcting, etc. of the Yantan hydropower station.

介绍岩滩水电站大坝倒垂线观测系统的倒垂线孔钻孔的孔斜控制、孔斜测量、孔斜纠偏等施工技术及廊道内遇长岩芯的处理方法。

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The application situations of controlled blasting techniques in pile hole boring are introduced.

通过实例介绍了控制爆破技术在桩孔开挖工程中的应用情况。

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On the fifth hole Thursday, for example, Woods's low-boring iron off the tee found the left side of the fairway.

WSJ: 2012 U.S. Open: An Olympian Effort Just to Survive