Ключевые слова: background, belt, business, coal, construction, conveyor, copper, environment, equipment, geology, gold, heavy, huelva, industrial, industry, iron, landscape, large, layer, machinery, metal, mine, miner, mineral, minerals, mining, mountains, nature, ore, power, quarry, red, road, rock, sand, sky, spain, steel, stone, surface, technology, texture, transport, vehicle, verde, view, white, work, worker, yellow,