Ключевые слова: architecture, background, banner, black, building, business, chemical, chemistry, chimney, construction, country, design, dirty, electricity, energy, environment, equipment, factory, flag, fuel, gas, illustration, industrial, industry, kosovo, manufacturing, national, oil, patriotic, patriotism, pattern, pipe, plant, pollution, power, refinery, ripple, silhouette, skyline, smoke, station, stripes, structure, symbol, tank, technology, texture, tower, united, urban,