Ключевые слова: 3d, air, blue, building, business, chemical, chimney, coal, color, colorful, construction, cyan, danger, dirty, ecology, electric, electricity, energy, environment, environmental, factory, fuel, gas, generator, icon, illustration, industrial, industry, isolated, manufacturing, nuclear, oil, pipe, plant, pollution, power, production, refinery, render, rendering, silhouette, smog, smoke, station, steam, structure, technology, tower, toxic,