Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Deepening Ross and Yates shafts from 4250 and 4160 ft, respectively, to 5000 level; sinking winze from 4850 ft to undetermined depth; sequence of operations, timbering and mechanization; sinking of air shaft.
Deepening Ross and Yates shafts from 4250 and 4160 ft, respectively, to 5000 level; sinking winze from 4850 ft to undetermined depth; sequence of operations, timbering and mechanization; sinking of air shaft.
Shaft sinking at Homestake
Min Congress J
Campbell, W.C. (Autor:in)
1959
6 pages
Aufsatz (Zeitschrift)
Englisch
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