A piece of fine wood, one eye also have no, but why can nail a nail in it? It is hard to squeeze into by pressure, hard drilling.

一块好好的木板，上面一个眼也没有，但钉子为什么能钉进去呢？这就是靠压力硬挤进去的，硬钻进去的。

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Potter Drilling of California uses jets of superheated fluid to break through granite five times faster than traditional techniques, which don't do well against hard rock types.

加利福尼亚的Potter Drilling5次使用过热液体穿透花岗岩，花费时间比传统工业快很多，不过这种工艺在试用硬质岩石时表现不佳。

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Shenzhen, the source of drilling hard Materials Co., Ltd. is a carbide-based products, high-tech enterprises.

深圳市钻源硬质材料有限公司是一家以硬质合金为主产品的高科技企业。

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He has become a hawk on offshore oil drilling and would push hard for the building of new nuclear power plants.

FORBES: What Next?

It is hard to see anything positive about the offshore drilling debacle that has countless barrels of oil washing ashore in Louisiana, and perhaps soon in other Gulf states.

CENTERFORSECURITYPOLICY: The oil leak's silver lining?

Bioerosion: process by which animals, through drilling, grazing and burrowing, erode hard substances, for example rocks and coral reefs.

UNESCO: L O S S A R Y