Ключевые слова: big, cement, construction, deep, digging, drink, dump, dump truck, dumper, environment, equipment, excavation, excavator, extraction, extreme, factory, geology, gray, grunge, heavy, hours, huge, industrial, industry, large, limestone, limestone quarry, machine, machinery, machinery industry, material, metallic, mine, mineral, mining, open pit, opencast, powerful, quarry, quarrying, rock, stone, technology, tool, transport, transportation, truck, vehicle, work, yellow,