Ключевые слова: big, bulldozer, business, construction, development, diamond, digging, dust, earth, equipment, excavation, extraction, factory, geology, granite, gravel, heavy, huge, industrial, industry, iron, landscape, large, loading, machine, machinery, manufacturing, marble, material, metal, mine, mineral, mining, open, ore, pit, power, production, quarry, quarrying, rock, sand, shoveling, stone, technology, transportation, truck, vehicle, wheel, work,