Ключевые слова: blue, chemical, chemistry, color, colorful, dark, energy, engine, engineering, equipment, facility, factory, field, global, heavy, high, industrial, industry, iron, light, line, lpg, machine, machinery, mast, mechanism, metal, nature, night, oil, outdoor, petro, petrochemical, petroleum, plant, power, refinery, resource, silo, silver, sky, station, steel, structure, sunset, supply, technology, tower, transformer, twilight,