Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ventilation and drainage
Data based on editorial survey of 41 mines; multiple fan and pump installations reflect growth in contour and island mining; good airways promote efficiency in ventilation; sumps and boreholes supplement other drainage facilities at deeper mines.
Ventilation and drainage
Data based on editorial survey of 41 mines; multiple fan and pump installations reflect growth in contour and island mining; good airways promote efficiency in ventilation; sumps and boreholes supplement other drainage facilities at deeper mines.
Ventilation and drainage
Coal Age
Coal Age ; 53
1948
3 pages
Aufsatz (Zeitschrift)
Englisch
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