Ключевые слова: big, coal, construction, development, diamond, digger, digging, dramatic, dump, earth, equipment, excavator, extraction, geology, gold, granite, heavy, industrial, industry, iron, large, loader, loading, machine, machinery, manufacturing, material, metal, mine, mineral, open, opencast, ore, pit, production, quarry, resource, rock, sky, stone, storm, technology, tractor, transport, transportation, truck, vehicle, wheel, work,