Ключевые слова: air, appliance, background, blades, blower, circle, circulation, cold, compressor, condition, conditioner, conditioning, control, cool, coolant, cooler, cooling, electric, electrical, electricity, equipment, fan, grid, heat, illustration, industrial, industry, machine, machinery, metal, motion, outside, overlap, pattern, power, propeller, rotate, sheet, steel, system, technology, temperature, turbine, turning, unit, vent, ventilation, ventilator, voltage, window,