N
n-exponent,n-指數
N.T.C.thermistor,負溫度系數熱敏電阻器
Nansen bottle,南森采水器
Nansen opening-and-closing net,南森開團式網
narrow-band filter,窄帶濾波器
narrow-band random vibration,窄帶隨機振動
narrow band spectrum,窄波段
national satellite,國土衛星
national standard,國家標準
natural convection,自然對流
natural electric-field method instrument,自然電場法儀器
natural environment,自然環境
natural field electro-detector,天然場電測儀
natural frequency,固有頻率
natural frequency measurement,固有頻率的測量
natural frequency of rotor/bearing system,轉子支承系統固有頻率
natural gamma spectromenter of logger,自然伽瑪能譜測井儀
natural inherent frequency,自然固有頻率
natural mode of vibration,固有振型
near field,近場
near infrared range(NIR)remote sensing,近紅外遙感
near-optimality,近優性
nearest-neighbor,最近鄰
nebulizer,霧化器
negative feedback,負反饋
negative knives linear,負刀聯線
negative pressure,負壓；真空
negative shock response spectrum,負沖擊響應譜
negative strain,負應變
negative tempperature coefficient thermistor,負溫度系數熱敏電阻
nephelometer,渾濁度表
nephoscope,測云器
Nernst equation,能斯特方程
nest,嵌套
net pyrgeometer,凈地球輻射表
net pyrradiometer,輻射平衡表
net radiation,凈輻射；輻射平衡；輻射差額
net retention time,凈保留時間
net retention volume,凈保留體積
net sounder,網位儀
net terrestrial radiation,凈地球輻射
network frame,網絡幀
network management,網絡管理
network model,網絡模型
network protocol,網絡協議
network technique,網絡技術
neutral absorption,中性吸收
neutral filter,中性濾光片
neutral zone,中間區
neutrally buoyant float,中性浮標
Newton's fluid,牛頓流體
neutron dosimeter,牛頓流動定律
neutron dosimeter,中子劑量計
neutron logging instrument,中子測井儀
neutron fraiograghy,中子射線照相術
neutron spectromenter,中子能譜儀
neutron-gamma radiometer,中子伽瑪輻射儀
Nickel-Chromium/CopperNickel thermocouple,鎳鉻-銅鎳熱電偶
Nickel-Chromium/NickelAluminium[Silicom] thermocouple，鎳鉻-鎳鋁[硅]熱電偶