Jack used a drill to bore a hole in the wall above the fireplace.

杰克用钻子在壁炉上方的墙上钻孔。

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This would assist the drilling of a bore hole into the mine, to take a gas reading from near where the miners are.

这将有利于向煤矿下钻孔，来读出矿工所在位置附近的气体指数。

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BORE: The process of enlarging an existing hole with a rotating cutting tool.

镗孔：使用旋转式切削工具扩大孔的过程。

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The process involves drilling a bore hole and using explosives or water to force gas to the surface.

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Officials said both efforts -- to drill a rescue shaft and widen a bore hole -- could be carried out concurrently.

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Supplies -- such as food, clothing and letters -- are sent down to the miners via metal cylinders known as "carrier pigeons" through the second bore hole.

CNN: STORY HIGHLIGHTS