Ключевые слова: atom, atomic, barrel, battery, building, bulb, coal, dam, eco, ecology, electric, electricity, energy, environment, factory, fuel, gas, green, house, icon, industrial, leaf, light, lightening, line, nature, nuclear, oil, outline, panel, petroleum, plant, plug, power, refinery, renewable, science, set, sign, socket, solar, station, sun, symbol, tower, transmission, turbine, valve, wind,