Ключевые слова: background, black, black gold, blue, carbon dioxide, coal, coal structure, combustible, combustion, dark, dirty, dusty, element, energy, energy storage, exploitation, factory, flags, flake, fossil, fuel, fuel material, geology, glow, grill, hard, hard coal, heat, heat and power plant, heat source, industrial, industry, light source, mine, miner, mineral, mining, orange, panorama, panoramic image, pile of coal, pollution, potential, power, production, raw material, red, rock, solid, solid fuel, splintered, stack, stone, stove, sun, sunrise, sunset, texture, tungsten, tuxedo, unclean, underground, wealth, yellow,