Ключевые слова: air, bright, business, color, control, energy, engineering, equipment, factory, fire, flange, flow, fuel, gas, heat, high, horizontal, house, hydraulic, industrial, industry, instrument, inventory, manufacturing, measure, measuring, metal, meter, metering, natural, oil, pipe, pipeline, plan, plant, power, pressure, refinery, station, steel, system, technology, tube, unit, valve, water, work, yellow,