Ключевые слова: air, appliance, background, barometer, chemical, closeup, compress, compressor, control, copyspace, detail, detector, device, engineering, equipment, factory, gas, gauge, indicate, indicator, industrial, industry, instrument, machine, manometer, measure, measurement, measuring, mechanic, meter, nobody, old, overpressure, pipe, pipeline, piping, plant, pressure, pressurize, pump, red, round, scale, system, technology, tool, tube, valve, white, zero,