Ключевые слова: board, boat, bulgaria, bulk, cargo, commerce, dock, economy, ernst, export, freight, goods, harbor, heavy, import, industry, international, load, logistic, marine, maritime, market, modern, nautical, navigate, port, portal, rickmers, sail, seaborne, seagoing, ship, shipping, terminal, tonnage, trade, traffic, transport, transportation, unload, varna, vessel, water, weight, wharf,