arcwall coal cutter
arcwall coal cutter
[′ärk‚wȯl ′kōl ‚kəd·ər] (mining engineering)
A type of electric or compressed-air cutter for under- or overcutting a coal seam in narrow work.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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