Ключевые слова: activity, boiler, circulation, control, copper, determine, device, dial, energy, engineering, equipment, factory, fuel, gauge, hydraulic, industrial, industry, instrument, liquid, machine, manometer, measure, measurement, measuring, mechanical, metal, meter, oil, physical, pipe, pipeline, power, pressure, pump, scale, steam, steel, stress, supply, system, technology, temperature, tube, valve, water, work,