Ключевые слова: air, bar, blending, boiler, bolts, conditioning, consumption, control, electricity, energy, engineering, equipment, fence, flow, fuel, gas, gauge, laboratory, lever, machine, machinery, mbar, meter, milibar, millibar, numbers, nuts, pebbles, power, pressure, scale, station, steel, supply, tank, transmission, trees, tubes, valves, wheel,