Under normal circumstances, Drifting in the rock face of the gushing water, in the concentration of multiple drill rock drill before the solids content of at least.

一般情况下，在岩石平巷掘进工作面的涌水中，在多台凿岩机集中打眼之前，固体颗粒含量最少。

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The drill is strong enough to bore through solid rock.

这把钻足以钻透坚固的岩石。

《牛津词典》

Miners watch as the drill machine 'Sissi' breaks through the rock on the final section of the Gotthard Tunnel.

打通山体的工人正在查看钻孔机器“茜茜公主”打穿圣哥达隧道最后一部分的岩石。

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The muscular man is working hard to control a powerful drill that is cutting through the rock that surrounds him.

VOA: special.2009.03.23

Since cosmic radiation alters surface composition, Curiosity can drill into rock to extract pristine material from below.

CNN: Curiosity opening Martian frontier?

Bissell hired Edwin Drake to drill for rock oil, not salt, and in 1859 Drake found what Bissell was looking for.

FORBES: Magazine Article

But for shale gas, once the drill reaches the shale rock underground, the drill bit is turned horizontally to bore a well that stretches through the natural gas producing shale.

FORBES: China Closer To Joining Shale Gas Fracking Craze