Ключевые слова: assembly, background, boat, bridge, business, cargo, commercial, concrete truck, construction, crane, crane building, design, dock, energy, engineer, engineering, equipment, factory, flat, fuel nozzle, gas, harbor, hull, illustration, industrial, industry, line, machine, machinery, manufacturing, metal, modern, plant, port, production, repair, robot, scaffolding, sea, ship, shipping, shipyard, steel, technology, transport, transportation, travel, vessel, water, work,