Ключевые слова: boiler, chemical, control, device, energy, engineering, equipment, factory, fuel, gas, gasoline, gauge, heat, heating, horizontal, indicator, industrial, industry, instrument, liquid, machine, manometer, manufacturing, measure, measurement, metal, meter, modern, pipe, pipeline, plant, power, pressure, pressure gauge, production, pump, refinery, safety, steel, system, tank, technology, temperature, tool, tube, valva, valve, water,