Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Mine pumping plants -- Anthracite region of Pennsylvania
Mine drainage systems handle more than 200 billion gal of water annually, of which 150 billion gal is pumped to surface; kinds of pumps used and data on their performance; relationship between rain and volume of water pumped; pumping data by mines and by stations.
Mine pumping plants -- Anthracite region of Pennsylvania
Mine drainage systems handle more than 200 billion gal of water annually, of which 150 billion gal is pumped to surface; kinds of pumps used and data on their performance; relationship between rain and volume of water pumped; pumping data by mines and by stations.
Mine pumping plants -- Anthracite region of Pennsylvania
U S Bur Mines -- Bul
Ash, S.H. (Autor:in) / Hower, C.S. (Autor:in) / Kennedy, D.O. (Autor:in) / Lesser, W.H. (Autor:in)
1953
151 pages
4 Supp Plates
Report
Englisch
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