n.a shaft in a building; serves as an air passage for ventilation

Ventilation Shaft
Ventilation Shaft
ventilation shaft
Dielectric Housing Having a Ventilation Shaft
Analysis of concrete in a vertical ventilation shaft exposed to sulfate-containing groundwater for 45?years
Shield machine disassembly in grouted soils outside the ventilation shaft: A case history in Taipei Rapid Transit System (TRTS)
Influence of mechanical ventilation-shaft connecting location on subway tunnel ventilation performance
Estimation of support requirement for large diameter ventilation shaft at Chuquicamata Underground Mine in Chile
Air nozzle for guiding air flow from an air feed shaft or line into a heating, ventilation or air-conditioning system, especially in...
Delivery stabilizer for ventilation shaft
ANALYSIS OF IN-SITU GEO-STRESS AND ROCKBURST AT NO.2 VENTILATION SHAFT TUNNEL OF QINLING HIGHWAY TUNNEL
Determination of the applicable exhaust airflow rate through a ventilation shaft in the case of road tunnel fires.
Rock burst prediction for ventilation shaft of Qinling highway tunnel and its countermeasures