?新型特征船舶    novel type of craft

?无电压警报    no-volt alarm

?喷嘴    nozzle

?喷嘴角    nozzle angle

喷嘴角    nozzle angle

?喷嘴面积系数    nozzle area coefficient

?喷嘴叶[片]    nozzle blade

?喷嘴块    nozzle block

?喷嘴箱    nozzle box

?喷嘴加减调速    nozzle control (or cutout ) governing

?喷嘴效率    nozzle efficiency

?喷嘴损失    nozzle loss

?喷嘴螺桨    nozzle propeller

?喷嘴喉    nozzle throat

?喷嘴尖头    nozzle tip

?葡萄牙国家标准    NP (= Norma Portuguesa, Portugal)

?净有效吸水头    NPSH (= net positive suction head)

?挪威国家标准    NS (= Norsk Standard, Norway)

?挪威船舶性能规程    NSC (= Norwegian Sea Control, or Sea Worthiness of Ships Norwegian Regulation)

?新截片法    NSM (= new strip method)

?荷兰船模试验槽    NSMB (= Netherlands Ship Model Basin)

?净吨位    NT (= net tonnage)

?正火及回火    NT (= normalized and tempered)

?核能动力船    nuclear (or atomic power) ship (NS)

?核能[动力]推进    nuclear (or nuclear power ) propulsion

?核子货船安全证书    nuclear cargo ship safety certificate

?核融合炉    nuclear fusion reactor (NFR)

?核能商船    nuclear merchant ship

?核能客船安全证书    nuclear passenger safety certificate

?核子客船安全证书    nuclear passenger ship safety certificate

?核子动力船    nuclear ship (NS)

?核子潜艇    nuclear submarine

?焊块    nugget

?数目,号数    number

?叶数    number of blades

?转数    number of revolution

?冲程数    number of stroke

?加油长    number one oiler

?数值分析法    numerical analysis method

?数值外形控制    numerical contouring control (NCC)

?数值控制机    numerical control (N/C) machine

?数值控制    numerical control (NC)