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Search U.S. government technical reports digitized or harvested by TRAIL.
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6 results returnedSurface evaluation of the 4M Miniminer System
Device for in situ measurement of coal-cutting forces
Conical bit rotation as a function of selected cutting parameters
Longwall shearer performance using water-jet-assisted cutting
Published Year
Subject
- Coal-mining machinery--Testing (6) *
- Bits (Drilling and boring)--Testing (1)
- Coal mines and mining--Dust control (1)
- Coal-cutting bits--Testing (1)
- Longwall mining--Equipment and supplies--Testing (1)
- Mechanical wear (1)
- Water jet cutting (1)
Author
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