Ключевые слова: building, business, chemical, chemistry, chimney, construction, dusk, ecology, electricity, energy, engineering, environment, environmental, evening sky, factory, fuel, future, gas, hydroelectric, hydropower, industrial, industry, landscape, manufacture, manufacturing, metal, modern, oil, petrochemical, petroleum, pipe, pipeline, plant, pollution, power, power plant, power station, production, purification, refinery, refining, station, steam, steel, structure, sunset, supply, technology, tower,