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N natural and mechanical combined ventilation 联合通风(33) natural attenuation quantity of noise 噪声自然衰减量(99) natural exhaust system 自然排风系统(37) natural freguency 固有频率(100) natural ventilation 自然通风(33) NC-curve[s] 噪声评价NC曲线(97) negative freedback 负反馈(86) neutral level 中和界(39) neutral pressure level 中和界(39) neutral zone 中和界(39) noise 噪声(97) noise control 噪声控制(98) noise criter ioncurve(s) 噪声评价NC曲线(97) noisc rating number 噪声评价NR曲线(97) noise reduction 消声(99) non azeotropic mixture refragerant 非共沸溶液制冷剂(77) non-commonsection 非共同段(25) non condensable gas 不凝性气体(78) non condensable gas purger 不凝性气体分离器(84) non-isothermal jct 非等温射流(68) nonreturn damper 〔通风〕止回阀(53) nonreturn valve 止回阀(31) normal coldest month 累年最冷月(3) normal coldest 3-month period 累年最冷三个月(3) normal hottest month 累年最热月(3) normal hottest 3month period 累年最热三个月(3) normal three summer months 累年最热三个月(3) normal three winter months 累年最冷三个月(3) normals 累年值(3) nozzle outlet air suppluy 喷口送风(69) number concentration 计数浓度(36) number of degree-day of heating period 采暖期度日数(9) O octave 倍频程(97) 1/3 octave 倍频程(97) octave band 倍频程(97) oil cooler 油冷却器(84) oill-fired unit heater 燃油热风器(30) one-and-two pipe combined heating system 单双管混合式采暖系统(21) one (single)-pipe circuit (cross-over) heating system 单管跨越式采暖系统(21) one(single)-pipe heating system 单管采暖系统(21) one(single)-pipe seriesloop heating system 单管顺序式采暖系统(21) one-third octave band 倍频程(97) on-of control 双位调节(88) open loop control 开环控制(86) open return 开式回水(15) open shell and tube condenser 立式壳管式冷凝器(82) open tank 开式水箱(28) operating pressure 工作压力(27) operating range 作用半径(26) opposed multiblade damper 对开式多叶阀(52) organized air supply 有组织进风(33) organized exhaust 有组织排风(34) organized natural ventilation 有组织自然通风(37) outdoor air design conditions 室外空气计算参数(7) outdoor ctitcal air temperature for heating 采暖室外临界温度(9) outdoor design dry-bulb temperature for summer air conlitioning 夏季空气调节室外计算干球温度(8) outdoor design hourly temperature for summer air conditioning 夏季空气调节室外计算逐时温度(9) outdoor design mean daily temperature for summer air conditioning 夏季空气调节室外计算日平均温度(9) outdoor design relative humidityu for summer ventilation 夏季通风室外计算相对湿度(8) outdoor design relative humidity for winter air conditioning 冬季空气调节室外计算相对湿度(8) outdoor design temperature ture for calculated envelope in winter冬季围护结构室外计算温度(8) outdoor design temperature ture for heating 采暖室外计算温度(7) outdoor design temperature for summer ventilation 夏季通风室外计算温度(8) outdoor design temperature for winter air conditioning 冬季空气调节室外计算温度(8) outdoor design temperature for winter vemtilation 冬季通风室外计算温度(7) outdoor designwet-bulb temperature for summer air conditioning 夏季空气调节室外计算湿球温度(8) outdoor mean air temperature during heating period 采暖期室外平均温度(9) outdoor temperature(humidity) 室外温(湿)度(5) outlet air velocity 出口风速(70) out put variable 输出量(89) overall efficiency of separation 除尘效率(47) overall heat transmission coefficient 传热系数(16) overflow pipe 溢流管(23) overheat steam 过热蒸汽(14) overlapping averages 滑动平均(4) overshoot 超调量(88) P packaged air conditioner 整体式空气调节器(70) packaged heat pump 热泵式空气调节器(71) packed column 填料塔(58) packed tower 填料塔(58) panel heating 辐射采暖(12) parabolic flow character-istic 抛物线流量特性(90) parallel multiblade damperin 平行式多叶阀(53) particle number concentration 计数浓度(36) particle size 粒径(44) particle size distribution 粒径分布(44) particulate 粒子(44) particulate collector 除尘器(56) particulates 大气尘(43) passage ventilating duct 通过式风管(52) penetration rate 穿透率(47) percentage of men,women and children 群集系数(62) percentage of possible sunshine 日照率(7) percentage of return air 回风百分比(68) perforated ceiling air supply 孔板送风(69) perforated plate tower 筛板塔(58) periodic dust dislodging 定期除灰(48) piece (通风〕部件(52) pipe fittings 管道配件(23) pipe radiator 光面管散热器(29) pipe section 管段(25) pipe coil 光面管放热器(29) pitot tube 皮托管(103) plate heat exchanger 板式换热器(73) plenum chamber 静压箱(74) plenum space 稳压层(70) plug 丝堵(24) plume 烟羽(50) plume rise height 烟羽抬升高度(50) PNC-curve[s] 噪声评价PNC曲线(97) pneumatic conveying 气力输送(46) pueumatic transport 气力输送(46) pneumatic valve 气动调节阀(95) pneumo-electrical convertor 气-电转换器(94) positioner 定位器(95) positive feedback 正反馈(86) powerroof ventilator 屋顶通风机(55) preferred noise criteria curve[s] 噪声评价PNC曲线(97) pressure drop 压力损失(26) pressure enthalpy chart 压焓图(77) pressure ga[u]ge 压力表(103) pressure of steam supply 供汽压力(14) pressure reducing valve 减压阀(31) pressure relief device 泄压装置(53) pressure relief valve 安全阀(31) pressure thermometer 压力式温度计(102) pressure volume chart 压容图(77) primary air fan-coil system 风机盘管加新风系统(64) primary air system 新风系统(64) primary retirn air 一次回风(68) process air conditioning 工艺性空气调节(59) program control 程序控制(91) proportional band 比例带(89) proportional control 比例调节(88) proportional-integral (PI)control 比例积分调节(88) proportional-integralderivative(PID)control 比例积分微分调节(88) protected(roof)monitor 避风天窗(39) psychrometric chart 声级计(104) pulvation action 干湿球温度表(102) push-pull hood 焓湿图(65) pulvation action 尘化作用(45) push-pull hood 吹吸式排风罩(42) Q quick open flow characteristic 快开流量特性(89) |