Ключевые слова: air, aluminum, background, blower, circle, circulation, climate, cold, commercial, compressor, condition, conditioner, conditioning, cool, cooler, cooling, curtains, curve, duct, electric, electricity, equipment, factory, fan, funnel, heat, horizontal, house, hvac, industrial, industry, machine, machinery, metal, office, pipe, power, propeller, rotate, rotation, steel, supply, system, technology, temperature, ventilation, ventilator, white, wind,