Ключевые слова: army, boat, cylinder, diesel, diving, emergency, engine, equipment, hatch, heavy, hydraulic, indoor, inside, interior, machine, manhole, manometer, maritime, military, motor, nautical vessel, naval, navy, no people, nobody, old, passageway, pipeline, piping, pod, pressure, room, sea, shipping, sub, submarine, suit, technology, torpedo, transport, tube, turbine, underwater, valve, vessel, vintage, war, warship, weapon,