Ключевые слова: avocado, background, building, business, button, chemical, construction, distillery, ecology, electricity, energy, engineering, environment, equipment, factory, fuel, gas, graphic, hazardous, heavy, icon, illustration, industrial, industry, manufacture, mark, marketing, modern, nuclear, oil, outline, petrochemical, petrol, pictogram, pipeline, plant, pollution, power, real estate, refinery, rotated, shopping cart, sign, silhouette, smoke, square, station, structure, symbol, white,