Ключевые слова: allow, blur, channel, closeup, connection, control, device, devices, digital, efficient, energy, equipment, flanges, flow, fluid, indicator, industrial, industry, instrument, instrumentation, isolated, liquids, machine, measure, measurement, metal, meter, oil, pipe, pipelines, power, quantity, round, soft foucs, supply, technique, technology, test, tool, tube, water, white,