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A DEVICE FOR FRACTURING STONE, ROCK AND THE LIKE
A DEVICE FOR FRACTURING STONE, ROCK AND THE LIKE
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机译:一种压裂岩石,岩石和类似岩石的装置
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摘要
A device for fragmenting cleavable materials, such as stones, rocks, concrete and the like, comprises a body of fragmentation that can be introduced into a hole in said materials and which is likely to expand in a direction transverse to the axis of the hole.
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