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matthew n plis

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TestingPreliminary evaluation of the relationship of bit wear to cutting distance, forces, and dust using selected commercial and experimental coal-and rock-cutting toolsMatthew N. Plis

Preliminary evaluation of the relationship of bit wear to cutting distance, forces, and dust using selected commercial and experimental coal-and rock-cutting tools

Matthew N. Plis · U.S. Bureau of Mines

63 sayfa · 1988

Coal mines and mining / Coal-cutting bits / Dust control / Testing

ValuationCOALVAL, a prefeasibility software package for evaluating coal properties using Lotus 1-2-3, release 2.2Matthew N. Plis

COALVAL, a prefeasibility software package for evaluating coal properties using Lotus 1-2-3, release 2.2

Matthew N. Plis · U.S. Dept. of the Interior, Bureau of Mines

93 sayfa · 1993

COALVAL / Coal mines and mining / Data processing / Valuation