Ключевые слова: activity, bridge, building place, built, cement, closeup, construction, construction site, crushed, crushed gravel, curve, day, discharging, granite, gray, gray granite gravel, heap, horizontal, industrial, industry, macadam, mountain, new, objectsequipment, outdoors, pebble, pile gravel, quarry, sand, stack, stone, structure, textured, toughness, uneven,