Using the principle of "ore deposit is controlled by structure" and through combining of trench with hole, the new geological reserves of ore are detected that prolongs the service life of mine.

前言：利用构造控矿原理，采用坑钻相结合的方式，探明新增地质储量，延长矿山服务年限。

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The deep hole drilling provides the reliable data for the deep ore-prospecting.

深孔钻进的实现，为深部地质找矿提供可靠资料。

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Some superiorities of using down hole hammer counter circulation type continuous coring (sampling) method in gold ore exploration are expounded in this paper.

文中阐述了在金矿勘探中应用潜孔锤反循环连续取心（样）的优越性；

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The multinational digger has just confirmed it has let the trucks roam free at the Nammuldi iron ore mine, a hole in the ground located in more or less the middle of nowhere, as the nearest town, Tom Price, is 60km away.

FORBES: Don't Tell The Teamsters: But Driverless Trucks Are Already Here

The deal digs Mr Albanese out of a hole the size of Tom Price, the huge iron-ore complex in the Pilbara region of Western Australia in which Chinalco stands to take a stake.

ECONOMIST: Face value