Ключевые слова: breakstone, coal, construction, conveyor, dirt, dredger, dust, earth, engineering, environment, equipment, excavation, excavator, extraction, factory, fuel, geology, granite, gravel, grunge, hard, heap, heavy, huge, industrial, industry, land, loader, machine, material, mechanical, mine, mineral, nobody, pit, plant, production, quarry, rock, rough, rubble, sand, sorting, stone, storage, surface, tool, transport, transportation, work,