Ключевые слова: and the trade surplus, big, bulk, business, cargo, cargo containers, cargo transport, china, commercial terminals, container, container yard, cranes, dock, docks, equipment, export, freight, goods, goods transportation, harbor, heavy, heavy loading, horizontal, import, industrial, industrial boats, industrial equipment, industrial production equipment, industry, large, loading, machine, marine, multicolor, people, port, port cranes, ports, qingdao, sailing, security systems, ship, shipping, terminal, the container ship, the european union, transportation, tugboats, unloading, wharf,