Open AccessA waterjet mining machine for use in room and pillar mining operations. [Final report]
Author(s) -
D.A. Summers
Publication year - 1990
Language(s) - English
Resource type - Reports
DOI - 10.2172/10182841
Subject(s) - coal mining , coal , mining engineering , wedge (geometry) , roof , loader , engineering , pillar , machine tool , surface mining , mechanical engineering , structural engineering , waste management , physics , optics
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