Ключевые слова: activity, aerial view, backhoe, beige, belt, bridge, business, construction, construction site, conveyor belt, design, development, digging, drone, dunes, dust, earth, emilia romagna, engineering, excavate, factory, gravel, ground, hydraulic, industry, italy, loading, machinery, mining, piacenza, plant, port, quay, resource, river, river bank, riverboat, sand, sand dune, sandbox, sandpit, ship, soil, spilling, view, waterway, wharf, working,