Ключевые слова: accuracy, air, arrow, bar, barometer, black, bolt, bright, clock, closeup, compression, control, detail, division, energy, engineering, equipment, gauge, gegree, graduation, indicator, industry, instrument, machine, macro, manometer, measure, measurement, metal, numbers, old, pipeline, pipes, precision, pressure, pump, round, scale, science, steamgauge, technology, tongue, tool, transport, valve,