Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Summer stripping and winter loading coordinated to meet winter water problems at Tono mine, Centralia, Wash; efficient underground recovery of old pillars based on special scraper units and semi-longwall; screening, hand picking and crushing.
Summer stripping and winter loading coordinated to meet winter water problems at Tono mine, Centralia, Wash; efficient underground recovery of old pillars based on special scraper units and semi-longwall; screening, hand picking and crushing.
Stripping waterlogged valleys
Coal Age
Crane, W.E. (Autor:in)
Coal Age ; 56
1951
4 pages
Aufsatz (Zeitschrift)
Englisch
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