Ключевые слова: animal feed, black and white, chemical, chemistry, chimney, construction, engineer, engineering, environment, equipment, factory, feed, fodder, food, global, heavy, industrial, industry, landscape, light, manufacturing, metal, night, pipe, pipeline, plant, pollutant, pollute, pollution, production, refine, refinement, refinery, sky, smoke, steam, storage, structure, sustainability, sustainable, tank, technology, tower, worker,