Neutral Axis

중립축

Neutral Equilibrium

중립평형

neutral Flame

중성불꽃

Non-return Valve, Check Valve

체크밸브

Number of Maximum Continuous Revolution

최대연속회전수

Num Buoy

타원형부표

Net Sling

하역망

Navigational Aids, Aids to Navigation

항로표지

Navigation Light, Running Light

항해등

Nautical Almanac

항해력