A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The mining of chilean nitrate with electric excavations
Electric excavators are now being used for removing cover and mining nitrate rock; electric locomotives are used for hauling.
The mining of chilean nitrate with electric excavations
Electric excavators are now being used for removing cover and mining nitrate rock; electric locomotives are used for hauling.
The mining of chilean nitrate with electric excavations
La explotacion del caliche en Chile con palas electricas
1928
2 Figs.
Article (Journal)
Spanish
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