Ключевые слова: above, abstract, aerial, background, business, cityscape, dawn, design, dusk, energy, engineer, engineering, equipment, factory, fuel, gas, green, heavy, industrial, industry, machine, manufacturing, metal, oil, pipe, pipeline, piping, plant, power, production, pump, refinery, resources, ship, sky, skyscraper, steel, supply, tank, tanker, technology, top, transportation, tube, twilight, ufo, view,