NN.wt.(netweight)净重NA-cement低碱水泥nacre珍珠母，珍珠层，珍珠质nailconcrete可钉混凝土naildrawer拔钉钳nailhammer钉锤nakedwire裸线nameplate铭牌nanoammeter毫微安计nanocurie毫微居里nanograde毫微级nanogram毫微克，纤克nanometer毫微米(10-9m)NanyoCementWorks日本南阳水泥厂narrow(railway)track窄轨(运输线)narrow-gaugetrack窄轨(运输线)naturalaggregate天然集料naturalaircooling自然空气冷却naturalcement天然水泥naturalconservation自然资源保护naturaldraftventilation自然通风naturalfrequencyconveyor摇臂式输送机naturalgas天然气naturalpumice天然浮石naturalrefractory天然耐火材料naturalventilation自然通风natural-vibrationfrequency固有振动频率navvypick挖土镐NDT(non-destructivetest)非破坏性试验neatcementpaste水泥净浆neatpaste(水泥)净浆neatPortlandcement纯硅酸盐水泥neckbearing中间轴承，辊筒轴承，颈轴承needle(roller)bearing滚针轴承needlegate棒闸，针开闸门needlevalve针阀negativeallowance(尺寸的)负公差negativemoment负弯矩negativepressure负压nephelinite霞岩neptunicrock水成岩，沉积岩nestofsieves套筛netfilterarea收尘器净面积netoutput净输出，实际产量netweight净重netton净吨，短吨，美吨[1吨=2000磅或907.2公斤]netware网件networkaddress网络地址networkcapacity网络能力networkcommunicationinterface网络通信接口networkcontrolprogram网络控制程序neutralgroundingreactor中性点接地电抗器neutralgroundingresistor中性点接地电阻器neutralgroundingtransformer中性点接地变压器neutralrefractory中性耐火材料neutrality中性，中和neutralizationprocess中和法neutronactivationanalyzer中子活化分析仪newcalcinationmethodwithaboiler带余热锅炉的新烧成法newdry-processcementproduction新型干法水泥生产newdry-processkilnwithaprecalciner带预分解炉的新型干法窑newsuspensionpreheater新式悬浮预热器newsuspensionpreheaterwithaflashcalciner带有快速分解炉的新型悬浮预热器nibbedbolt尖头螺栓nick(金属)裂口nickaction(钢丝绳股中的)交咬作用nickelchromiumsteel镍铬钢nickelsteel镍钢nickel-chromiummolybdenumsteel镍铬钼钢nickeliccastiron高镍(耐热)铸铁Ni-hardlining硬镍合金衬板NihonCementCo.日本水泥公司NilsWeibullCo.德国尼尔斯韦布尔公司[专业生产水泥设备制造公司]nipple①螺纹接头②喷嘴nitre硝石nitrousacid亚硝酸NittetsuCementCo.日本日铁水泥公司NMR(nuclearmagneticresonance)核磁共振nodules不规则的球粒，矿瘤，结节nodulizedrawmeal生料球nodulizer①成球盘②球化剂nodulizing制粒，造粒nodulizingdrum成球筒noisebaffle隔音屏障noisepollution噪声公害no-loadcurrent空载电流no-loadpower空载功率no-loadtest空载试验no-loadtestrun空载试运转nominalasbestoscementsheet石棉水泥波瓦标准张nominaldiameter标准直径，中值粒径nominalelasticstrain标称弹性应变nominalgrainsize标称颗粒粒度nominalhorsepower标称马力，额定功率nominallength标称长度nominalload额定负载，标称负荷nominalmaximumsizeofaggregate集料标称最大粒径nominalsize标定粒度，通称粒度[根据物料限度]nominalspeed额定转速，额定速度nominalthroughput额定产量nominalvoltage标定电压，额定电压non-absorbentmaterial非吸收性材料non-air-entrainingcement非引气水泥non-calcareouscement无钙水泥non-corrodibility防腐性nondefective合格品non-equilibrium不平衡non-ferrousmaterial有色金属材料nonferrousmetal有色金属，非铁金属non-free-flowingmaterial非自由流动材料non-freezingsolution防冻剂non-groundedneutralsystem中性点不接地系统non-ignitable耐火的，不燃的，不着火的non-miscible不溶混的non-preformedwirerope松散钢丝绳non-pressurized非加压的non-reinforcedconcrete素混凝土，无钢筋混凝土non-returnflap逆止阀non-returnsafetyvalve单向阀non-shrinkingcement不收缩水泥non-staini...
