51.   Some major weapons, such as tanks, nuclear submarines and armored vehicles, are essentially produced now by single companies, without any competition.

52.   Such self-restraint would raise the cost of building nuclear submarines and act as a deterrent.

53.   Supertankers, aircraft carriers and nuclear submarines cannot pass through the canal, and software does not need to.

54.   TECHNOBUDDY -- ATLANTA -- I have great news if you plan to design a nuclear submarine at home.

55.   The air-independent propulsion systems let submarines stay underwater for weeks, bringing their performance closer to that of nuclear submarines.

56.   The Falls Church, Virginia-based company, which has operations in Connecticut, makes nuclear submarines.

57.   The navy has withdrawn the torpedoes from use on nuclear submarines, Kuroyedov said.

58.   The nuclear Non-Proliferation Treaty includes no clause prohibiting the sale of either nuclear submarines or the highly enriched uranium fuel they run on.

59.   The purpose is to keep together the workforce needed to build nuclear submarines.

60.   The Russian nuclear submarine Kursk was an immense, dark shape on the Barents Sea floor when Don Degener first saw it.