Ключевые слова: air, arrow, automobile, background, barometer, black, control, device, diagnostic, dial, energy, engineering, equipment, fuel, gas, gauge, heartbeat, icon, indicate, indicator, industrial, industry, instrument, isolated, level, manometer, measure, measurement, medical, metal, meter, monitor, object, oil, patient, power, precision, pressure, production, pump, scale, steel, technical, technology, test, tire, tool, valve, white, work,