Ключевые слова: air, auto, background, bar, belt, blue, car, close, color, compressor, cylinder, electrical, equipment, factory, industrial, industry, isolated, machine, manometer, metal, motor, object, old, part, pipe, piston, power, pressure, pulley, pulleys, roller, rusty, steel, technology, tool, transmission, transportation, up, v, valve, vehicle, wheel, white,