Ключевые слова: 10, building, business, chemical, chimney, coal, construction, crane, design, distillery, ecology, electricity, energy, engineering, environment, equipment, factory, flat, fuel, gas, graphic, heavy, icon, industrial, industry, iron, logo, machinery, manufacturing, metallurgy, object, oil, petrochemical, petrol, pictogram, pipe, pipeline, plant, pollution, power, production, refinery, set, sign, smoke, station, structure, symbol, technology,