Navigation Bridge Deck

항해선교갑판

Nautical Astronomy

항해천문학

Navigation Area

항행구역

Naval Dockyard

해군공창

Naval Engineer

해군기사

Nuclear Reaction

핵반응

Nuclear Fission, Fission

핵분열

Nuclear Fuel

핵연료

Number of Stroke

행정수

Nominal Pressure

호칭압력