DE: Zürich, ETH Zürich, Altes Maschinenlaboratorium, Maschinensaal, Kalorische Abteilung, P. S.-de Laval-Dampfturbine, Riemenscheibe, Bremsscheibe aus Hirnholz
EN: Zurich, ETH Zurich, Old Machine Laboratory, Machine Hall, Caloric Department, P. S.-de Laval steam turbine, pulley, end-grain brake disk

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