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Effect of symmetric bit wear and attack angle on airborne respirable dust and energy consumption

Published Year

• 1970-1979 (1)

Subject

• Bits (Drilling and boring) (1)
• Coal mines and mining--Dust control (1)
• Coal-mining machinery (1) *
• Mine dusts (1)

Author

• Hanson, Bruce D. (1) *
• Roepke, Wallace W., (1)

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