Ключевые слова: air, bar, clock, construction, control, detail, distribution, energy, engineering, equipment, flow, fuel, gas, gauge, indication, industrial, industry, instrument, line, machine, machinery, manometer, measure, measurement, metal, meter, metering, natural, needle, object, oil, old, pipe, pipeline, power, pressure, pump, reading, rust, rusty, scale, science, steel, stress, technology, tool, valve, vintage, water, wheel,