Ключевые слова:
Ventilation, Ventilation equipment, Air terminal devices, Air-conditioning equipment, Air-distribution systems, Dampers (air conditioning), Valves, Test equipment, Testing conditions, Accuracy, Flow measurement, Flow rates, Pressure measurement (fluids), Leak tests, Mathematical calculations, Mechanical testing, Torque, Pressure testing, Thermal transmittance, Thermal testing, Grades (quality), Aerodynamic characteristics