The concrete piles being poured into deep hole act as the enclosure structure of deep pit. There are draining ditch and water gathering well inside the pit for drainage.

采用钻孔灌注桩作为深地坑的围护结构，在坑内设排水沟、集水井排水。

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Many hope they will get jobs at the new gold mine. Saidu Kamara supports his family by working in one of the small pit mines inside the Baomahun site.

VOA: standard.2010.04.22

Heat radiation coming from inside a pit, however, is more likely than not to encounter the pit's wall before it escapes into the outside world.

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Stepping inside, I came to a rail overlooking a shallow pit.

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The McLaren drivers were told to save fuel but soon Button was challenging Hamilton and he took the lead briefly by going around the outside of Turn 12, which becomes the inside of Turn 13, the corner on to the pit straight.

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