Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Big calyx drill sinks 1,400-ft holes
Illustrated description of drill assembly for sinking 6-ft drop shafts 1435 ft deep at Canon del Pato hydroelectric power plant in Peru.
Big calyx drill sinks 1,400-ft holes
Illustrated description of drill assembly for sinking 6-ft drop shafts 1435 ft deep at Canon del Pato hydroelectric power plant in Peru.
Big calyx drill sinks 1,400-ft holes
Construction Methods
Construction Methods ; 29
1947
4 pages
Aufsatz (Zeitschrift)
Englisch
© Metadata Copyright Elsevier B. V. All rights reserved.
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