La ventilation contrôlée chez Eldorado Gold -Mine Lamaque
PDF) Complément de Ventilation
Mine ventilation shaft topped with a device to extract the stale air from the mine. H is a vane to make the barrel revolve so that is always facing in the optimum
Mine ventilation made easy; wih an appendix containing detailed answers to 155 questions selected from various American examinations for mine inspectors and mine foremen - LOC's Public Domain Archive Public Domain Search
PDF] Application of VENTSIM 3 D and mathematical programming to optimize underground mine ventilation network : A case study | Semantic Scholar
Explication de la ventilation principale (ou primaire) - SUB'ROCA