Ключевые слова: australia, belt, blue, brown coal, coal, cobblestone, construction, conveyor, copy, cut, dig, dump, engineering, equipment, excavator, extraction, fuel, gold, heap, heavy, hole, horizontal, industry, land, large, loading, machine, machinery, manufacturing, material, metal, mine, mineral, mountain, outside, pebble, pouring, quarry, refinery, rock, sky, space, stack, stockpile, stone, technology, truck, works, yellow,