Ключевые слова: barge, blue, boat, bridge, business, cargo, danube, delivery, dimple, economy, engine, export, flow, freight, freighter, heavy, industrial, industry, logistics, motor, movement, moving, nautical, navigation, port, pushing, reservoir, riffle, river, serbia, ship, shipping, skyline, summer, texture, towboat, trade, transport, transportation, tugboat, vessel, water,