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BLAST HOLE DRILL BIT CAROUSEL AND A BLAST HOLE DRILL INCLUDING A BLAST HOLE DRILL BIT CAROUSEL
BLAST HOLE DRILL BIT CAROUSEL AND A BLAST HOLE DRILL INCLUDING A BLAST HOLE DRILL BIT CAROUSEL
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机译:炸药钻头转盘和包括炸药钻头转盘的炸药
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摘要
A drill bit carousel for use on a blast hole drill includes a base structure that movably supports a plurality of drill receptacles. The drill bit carousel is movable between a storage position and at least one exchange position. In the exchange position, one of the drill receptacles is aligned with a centerline of a drill pipe string. In the storage position, the drill bit carousel is clear of the centerline of the drill pipe string.
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