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COALVAL, a prefeasibility software package for evaluating coal properties using Lotus 1-2-3, release 2.2 [microform] : documentation and user's guide / by Matthew N. Plis, Timothy J. Rohrbacher, and Dale D. Teeters (Information circular ; 9348)

COALVAL, a prefeasibility software package for evaluating coal properties using Lotus 1-2-3, release 2.2 [microform] : documentation and user's guide / by Matthew N. Plis, Timothy J. Rohrbacher, and Dale D. Teeters (Information circular ; 9348)
Microform図書
1993<YCA-I 28.27:9348>
National Diet Library
  • Author HeadingPlis, Matthew N Rohrbacher, Timothy J Teeters...

Preliminary evaluation of the relationship of bit wear to cutting distance, forces, and dust using selected commercial and experimental coal-and rock-cutting tools / by Matthew N. Plis, Carl F. Wingquist, and Wallace W. Roepke (Report of investigations ; 9193)

Preliminary evaluation of the relationship of bit wear to cutting distance, forces, and dust using selected commercial and experimental coal-and rock-cutting tools / by Matthew N. Plis, Carl F. Wingquist, and Wallace W. Roepke (Report of investigations ; 9193)
Microform図書
1988<YCA-I 28.23:9193>
National Diet Library
  • Author HeadingPlis, Matthew N Wingquist, Carl F Roepke, Wal...

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