| 41. | The fire, which began early Sunday, was triggered by an electric cable igniting in the main shaft, Xinhua said.
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| 42. | The next section is the middles and goes from top fork down the main shaft to the bottom fork.
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| 43. | An extreme rock-climb ( graded E3, 5c ) is possible up the main shaft which requires very dry conditions.
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| 44. | In 1892 the main shaft was 501 feet deep, and production was reported to be 334, 552 tons of pyrite.
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| 45. | It is covered in conical rooftop that rotates, made of wood, from which springs the main shaft and sail axis.
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| 46. | Channel One television said the site of the blast was five 5 kilometers ( 3 miles ) from Taizhina's main shaft.
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| 47. | Finley, team engineer and shock specialist on Jimmy Spencer's team, built a set of shocks with a much larger main shaft.
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| 48. | By 1900 the main shaft was deep and selective mining methods were being used and two Wilfley Concentrators were in operation.
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| 49. | It gained its name as it allowed the Gaping Gill system to be entered even when the Main Shaft was in flood.
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| 50. | Rescuers could hear hammering behind rock that sealed the main shaft of Heye mine, in Hunan province, said the official, reached by telephone.
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