Ключевые слова: area, background, barrel, business, chemical, chemistry, chimney, close, complex, concept, construction, ecology, electricity, energy, engineer, engineering, environment, environmental, factory, fuel, gas, heavy, industrial, industry, line, machine, manufacture, metal, oil, petrochemical, petrol, petroleum, pipe, plant, pollution, power, production, pump, refinery, resources, station, steam, structure, supply, technology, tower, tube, up, valve, zone,