1、1NN.wt.(net weight) 净重NA-cement 低碱水泥nacre 珍珠母，珍珠层，珍珠质nail concrete 可钉混凝土nail drawer 拔钉钳nail hammer 钉锤naked wire 裸线name plate 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)Nanyo Cement Works 日本南阳水泥厂narrow (railway) track 窄轨(运输线)narrow-gauge track 窄轨(运输线)natural aggr
2、egate 天然集料natural air cooling 自然空气冷却natural cement 天然水泥natural conservation 自然资源保护natural draft ventilation 自然通风natural frequency conveyor 摇臂式输送机natural gas 天然气natural pumice 天然浮石natural refractory 天然耐火材料natural ventilation 自然通风natural-vibration frequency 固有振动频率navvy pick 挖土镐NDT (non-destructive tes
3、t) 非破坏性试验neat cement paste 水泥净浆neat paste (水泥)净浆neat Portland cement 纯硅酸盐水泥neck bearing 中间轴承，辊筒轴承，颈轴承needle (roller) bearing 滚针轴承needle gate 棒闸，针开闸门needle valve 针阀negative allowance (尺寸的)负公差negative moment 负弯矩negative pressure 负压nephelinite 霞岩neptunic rock 水成岩，沉积岩nest of sieves 套筛net filter area 收尘器
4、净面积2net output 净输出，实际产量net weight 净重net ton 净吨，短吨，美吨1 吨=2000 磅或907.2公斤netware 网件network address 网络地址network capacity 网络能力network communication interface 网络通信接口network control program 网络控制程序neutral grounding reactor 中性点接地电抗器neutral grounding resistor 中性点接地电阻器neutral grounding transformer 中性点接地变压器neut
5、ral refractory 中性耐火材料neutrality 中性，中和neutralization process 中和法neutron activation analyzer 中子活化分析仪new calcination method with a boiler 带余热锅炉的新烧成法new dry-process cement production 新型干法水泥生产new dry-process kiln with a precalciner 带预分解炉的新型干法窑new suspension preheater 新式悬浮预热器new suspension preheater with
6、a flash calciner带有快速分解炉的新型悬浮预热器nibbed bolt 尖头螺栓nick (金属)裂口nick action (钢丝绳股中的)交咬作用nickel chromium steel 镍铬钢nickel steel 镍钢nickel-chromium molybdenum steel 镍铬钼钢nickelic cast iron 高镍(耐热)铸铁Ni-hard lining 硬镍合金衬板Nihon Cement Co. 日本水泥公司Nils Weibull Co. 德国尼尔斯韦布尔公司专业生产水泥设备制造公司nipple 螺纹接头喷嘴nitre 硝石nitrous ac
7、id 亚硝酸Nittetsu Cement Co. 日本日铁水泥公司NMR (nuclear magnetic resonance) 核磁共振nodules 不规则的球粒，矿瘤，结节nodulized raw meal 生料球nodulizer 成球盘球化剂nodulizing 制粒，造粒nodulizing drum 成球筒noise baffle 隔音屏障noise pollution 噪声公害no-load current 空载电流3no-load power 空载功率no-load test 空载试验no-load test run 空载试运转nominal asbestos ceme
8、nt sheet 石棉水泥波瓦标准张nominal diameter 标准直径，中值粒径nominal elastic strain 标称弹性应变nominal grain size 标称颗粒粒度nominal horsepower 标称马力，额定功率nominal length 标称长度nominal load 额定负载，标称负荷nominal maximum size of aggregate 集料标称最大粒径nominal size 标定粒度，通称粒度根据物料限度nominal speed 额定转速，额定速度nominal throughput 额定产量nominal voltage 标
9、定电压，额定电压non-absorbent material 非吸收性材料non-air-entraining cement 非引气水泥non-calcareous cement 无钙水泥non-corrodibility 防腐性nondefective 合格品non-equilibrium 不平衡non-ferrous material 有色金属材料nonferrous metal 有色金属，非铁金属non-free-flowing material 非自由流动材料non-freezing solution 防冻剂non-grounded neutral system 中性点不接地系统non
10、-ignitable 耐火的，不燃的，不着火的non-miscible 不溶混的non-preformed wire rope 松散钢丝绳non-pressurized 非加压的non-reinforced concrete 素混凝土，无钢筋混凝土non-return flap 逆止阀non-return safety valve 单向阀non-shrinking cement 不收缩水泥non-staining cement 不着色的水泥含氧化铁少的水泥non-symmetrical section 不对称断面不对称型钢材non-tilting mixer 非倾斜式搅拌机nonuniform
11、ity 不均匀性，非均质性normal bend 标准弯头normal force 正压力，垂直力，法向力normal kiln 正常温度窑normal operation 正常作业，正常操作normal Portland cement 普通硅酸盐水泥normalized condition 正火状态normally open relay (带)常开(接点的)继电器4nose area 窑头区，窑口区nose casing 窑口区护板nose ring 窑口挡砖圈nose ring brick (窑头)护口耐火砖，窑口耐火砖nose ring seal 窑口密封圈nose sector 窑口铸
12、铁圈not insulated 不绝缘的not overstep the corresponding length 不超过相应长度not to be tipped 勿倾倒notch bar impact strength (金属)缺口(试)棒冲击韧性novaculite 均密石英岩nozzle 喷嘴，喷头nozzle cushion 喷嘴垫nozzle diaphragm 喷嘴孔板nozzle of water spray (水泥磨内)喷水嘴nozzle tip 喷嘴尖nuclear magnetic resonance (NMR) 核磁共振nuisance 公害nuisance rating
13、 公害程度的评估null instrument 平衡点测定器Nusselt number 努舍尔(扩散)指数nut 螺帽，螺母nut anchorage 螺纹锚固，螺帽锚固nut lock washer 螺帽止松垫圈，螺母缩紧垫圈nut wrench 螺帽扳手OO. Graf viscosimeter 格式粘度计o.a.d. (overall dimensions) 总尺寸，轮廓尺寸，外形尺寸o.f. (oxidizing flame) 氧化焰object packager 对象封装机objectionable coating 窑故障性结皮objectionable constituent 有
14、害成分oblique (倾)斜的oblique section 斜截面obliquity 倾斜度observation port 观察孔observation window 观测窗，观察孔octagon bar 八角棒材，八角型钢OD(outside diameter) 外径ODC(one-day cement) 超早强水泥OECC(Onoda Engineering Co. Ltd.) 日本小野田工程有限公司off-centering 中心偏移off-central 偏心off-gauge plate 不合格板，等外板off-line analysis 离线分析5off-line runni
15、ng monitor (胶带)跑偏监视器offset cam 偏心凸轮offset method (金属)条件屈服强度测量方法平行位移测条件屈服强度方法offsetting combustion in the kiln 窑内偏火offtake 排出口ohm (oh.) 欧姆oil buffer 液压缓冲器，油缓冲器oil burner 燃油器，喷油管，喷油嘴oil circuit breaker 油断路器oil circulation lubricating system 油循环润滑系统oil cleaner 洁油器oil cock 油路旋塞oil cooler 油冷却机oil cup 油杯o
16、il cut-off valve 断油阀oil cylinder 油缸oil filling 加油oil gauge 油量计，油位表oil gear 液压传动装置甩油齿轮oil groove 油槽，油沟oil heater 油加热器oil jack 油压千斤顶oil limiter 限油器oil nipple 油嘴器，注油嘴oil preheater 油预热器oil preheater with electric heating 用电加热的油预热器oil pump 油泵oil quenching 油淬火oil ring 油密封圈oil seal 油封oil seal ring 油封环oil s
17、eparator 分油器oil spill rate 漏油率oil strainer 滤油器oil tank 油箱，油槽oil-fired kiln 烧油的窑oil-free air compressor 无油空压机oil-immersed transformer 油浸变压器oiling ring 加油环oil-level gauge 油位表，油规oil-pressure lubrication 压油润滑oil-pressure switch 油压开关oil-return burner 回油嘴，回油燃烧器oil-ring bearing 油环轴承，有油圈的轴承6oil-sheet packin
18、g 油纸密封oil-tight 油封oil-well cement 油井水泥OK mill OK磨日本小野田水泥公司和神户制钢所合作制造的辊磨once-firing 一次烧成one-compartment mill 单仓磨one-line diagram 单线图one-man operation 一人控制，单人操纵one-pass grinding 开流粉磨one-stage suspension preheater 一级悬浮预热器one-way ring 单向环one-way slab 单向板oneway valve 单向阀，止回阀on-line adaptive control 联机适配控
19、制on-line X-ray fluorescence analyzer 在线 X射线荧光分析仪on-off controller 双位控制器，开闭型控制器on-site assembly 现场组装on-the-job training 岗位培训ooze 软泥，河泥opal 蛋白石OPC (ordinary Portland cement) 普通波特兰水泥open area of screen 筛的有效截面积open bin 敞式料斗仓open conveyer 敞式输送机open flame 明火，明焰open girth gear 敞式大齿轮open grate area 活动炉篦面积，有
20、效炉篦面积open mining 露天开采open position 开路位置，断路位置open sand 粗砂，多孔隙砂岩open type 敞开型open washer 开口(弹簧)垫圈open-air storage yard 露天堆场open-and-close valve 开闭阀，双位开关open-bottomed car 开底料车open-circuit crushing 开路破碎open-circuit reduction 开流破碎，单程粉碎opening 筛孔孔口opening-up 切割open-side setting (颚式破碎机)排料口张开时的宽度open-top mi
21、xer (车载)敞顶搅拌机open-type air slide 敞开式空气斜槽operating current 工作电流，操作电流operating instruction 操作规程7operating point 操作点operating control 调节机构，操作控制operating lever 操纵杆operation state(=thermal state) 热态operation voltage 操作电压operational availability 作业率，运转率，(设备)利用率operational interlocking 操作联锁operational reli
22、ability 操作安全性，运转可靠性opposed current 逆流，对向流opposing torque 反扭矩optical axis 光轴optical cable 光缆optical inversion 偏振转向(现象)optical level 光学水准仪，光学水平仪optical microscope 光学显微镜optical spectrum 光谱optimum control 优化控制optimum speed of mill 磨机最佳工作转速order of feeding 喂料顺序，加料次序order of lifting the kiln shell (安装窑时)窑胴体的吊装顺序order of reaction 反应次序，反应级数ordinary dense concrete 普通密度的混凝土ordinary Portland cement 普通波特兰水泥ordinate
