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A review of rock cutting for underground mining: past ...

WITS SPECIAL EDITION - VOLUME I . A review of rock cutting for underground mining: past, present, and future . D. Vogt. Centre for Mechanised Mining Systems, University of the Witwatersrand Johannesburg, South Africa

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Great Pyramid Hydraulic Pulse Generator and Water Pump

Stumble It! The Great Pyramid's Subterranean Chamber Hydraulic Pulse Generator and Water Pump. John Cadman (This article has many pictures. If all fail to load then hit refresh on your browser)

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