Ключевые слова: abstract, central, chemical, circulation, commercial, connection, control, efficiency, electricity, energy, engineering, equipment, facility, factory, fluid, fuel, gas, gasoline, heat, industry, inside, insulation, manufacturing, metal, oil, petrochemical, pipe, pipeline, plumbing, pollution, power, power supply, pressure, process, production, shine, silver, stainless steel, station, steam, steel, support, system, technical, technology, transportation, tube, warm, water, water pipe,