Ключевые слова: belt, building, business, construction, conveyor, crushed, dig, dirt, dredger, dust, earth, engineering, equipment, gear, gravel, gray, heap, heavy, hoe, industrial, industry, large, loading, machine, machinery, manufacturing, material, metal, mine, mineral, mover, open, pile, piles, pit, quarry, rock, sand, scoop, site, stack, stone, stones, transportation,