The bottom hole pattern of a well is the aggregation of the pits on the bottom rock cut by the bit teeth in the course of drilling.

井底模式就是钻头在钻凿岩石的过程中，钻头牙齿在井底岩石上打出凹坑的集合。

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Glaciers may form in permanently cold areas, and these slowly moving masses of ice cut out valleys, carrying with them huge quantities of eroded rock debris.

冰川可能形成于长期寒冷的地区，而这些缓慢移动的冰块切割了山谷，带走了大量被侵蚀的岩石碎片。

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Its sheer rock sides sweep up from a broad base until they cut off abruptly at the flat summit.

它陡峭的岩石边从一个宽阔的基地上拔地而起，直到在平坦的山顶下突然被切断。

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Giant faces of four great American presidents are cut into the rock near the top of Mount Rushmore in the Black Hills.

VOA: special.2009.03.04

This piece of basalt rock has been cut with words in the Akkadian language.

VOA: special.2010.06.23

Rivers created the area as they cut rock into many different formations.

VOA: special.2009.04.15

Meanwhile, Government-owned Northern Rock cut its Standard Variable Rate by 0.1% on Monday, its first move after the Bank of England cut base rates by 0.25% 11 days ago, and more than a week after the chancellor said banks should pass on interest rate cuts to homeowners.

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Features include cave hamams (Turkish baths), rock-cut arches, walls patterned with volcanic colour-banding and panoramic terraces surveying the valleys.

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Plans are also underway to introduce wildlife photography sessions and rock climbing at the 2, 400-year-old rock-cut Kanheri Caves later this year.

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