| 11. | In late 2003 Coalpower went into administration, in part due to geological problems at the coal face affecting production.
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| 12. | Someone who is " at the coal face " of an activity is personally involved in doing that activity.
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| 13. | As the coal face burns and the immediate area is depleted, the oxidants injected are controlled by the operator.
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| 14. | Grierson's boss at the EMB moved to the Harry Watt, 1936 ) and " Coal Face " ( dir.
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| 15. | The machine works by " shearing " coal from a longwall coal face as it moved along the face.
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| 16. | This mine boasts of a regular underground train service to ferry workers from the mine shaft to the coal face.
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| 17. | The explosion had been planned to open new coal faces, but unexpectedly released lethal amounts of methane and coal dust.
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| 18. | All the districts in Dennis were worked by the longwall system where the coal face was mined in single blocks.
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| 19. | They would often work 12-hour shifts, making several runs down to the coal face and back to the surface again.
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| 20. | The Barnsley seam was worked until 1934 by hand-got tub stalls when mechanical conveying was introduced at the coal face.
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