Ключевые слова: air, background, boiler, circle, clock, control, dial, emergency, energy, engineering, equipment, face, factory, fuel, gas, gasoline, gauge, hydrant, industrial, industry, instrument, isolated, machine, manometer, measure, measurement, metal, meters, object, old, pipe, pipeline, power, pressure, pressure meter, pump, rejection, safety, scale, sign, steam, steel, system, technology, thermometer, time, tool, tube, valve, wastage, water, water manometer, white,