Ключевые слова: aeration, air, aluminum, architecture, background, building, central, chimney, circulation, condition, conditioner, conditioning, construction, cooling, detail, duct, engineering, equipment, fan, gas, heat, home, house, hvac, industrial, industry, iron, line, metal, modern, nobody, office, pipe, pipeline, roof, rooftop, service, silver, steel, support, system, systems, technical, technology, temperature, tube, urban, vent, ventilation,