電子類(lèi)常用英漢對照詞典11

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(kāi)團式網(wǎng)

narrow-band filter,窄帶濾波器

narrow-band random vibration,窄帶隨機振動(dòng)

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(chǎng)法儀器

natural environment,自然環(huán)境

natural field electro-detector,天然場(chǎng)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(chǎng)

near infrared range(NIR)remote sensing,近紅外遙感

near-optimality,近優(yōu)性

nearest-neighbor,最近鄰

nebulizer,霧化器

negative feedback,負反饋

negative knives linear,負刀聯(lián)線(xiàn)

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(shí)間

net retention volume,凈保留體積

net sounder,網(wǎng)位儀

net terrestrial radiation,凈地球輻射

network frame,網(wǎng)絡(luò )幀

network management,網(wǎng)絡(luò )管理

network model,網(wǎng)絡(luò )模型

network protocol,網(wǎng)絡(luò )協(xié)議

network technique,網(wǎng)絡(luò )技術(shù)

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(dòng)定律

neutron dosimeter,中子劑量計

neutron logging instrument,中子測井儀

neutron fraiograghy,中子射線(xiàn)照相術(shù)

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

Nickel-Chromium-Silicom/Nickel-Silicom thermocouple,鎳鉻硅鎳硅熱電偶

Nier-Johnson geometry mass spectrometer,尼爾-約翰遜型 雙聚焦質(zhì)譜計

NIM bin NIM,機箱

Niskin sterile water sampler,尼斯金無(wú)菌采水器

nitrile rubber(Buna N),丁晴橡膠

nitrogen dioxide trnsfer furnace,二氧化氮轉化爐

nitrogen-oxide analyzer,氮氧化物分析儀

NMR absorption band,核磁共振吸收帶

NMR absorption line,核磁共振吸收線(xiàn)

NMR equipment,核磁共振儀

NMR line width,核磁共振線(xiàn)寬

no-load,空負荷

no-load test,空載試驗

node,節點(diǎn)

noetic science,思維科學(xué)

noise,噪聲

noise dose,噪聲劑量

noise dose meter,噪聲劑量計

noise factor,噪聲系數

noise generator,噪聲發(fā)生器

noise level,噪聲電平

noise level analyzer,噪聲級分析儀

noise prediction,噪聲預估

noise room,噪聲室

noise suppressing varistor,消噪電壓敏電阻器

noise thermometer,噪聲溫度計

noise transducer [sensor],噪聲傳感器

nominal cartridge diameter of microphone,傳聲器極頭公稱(chēng)直徑

nominal characteristic,名義特性

nominal flow-rate,公稱(chēng)流量

nominal heat value,標定熱值

nominal humidity,標稱(chēng)濕度

nominal operating condition,正常工作條件

nominal pressure rating,公稱(chēng)壓力

nominal range,標稱(chēng)使用范圍；標稱(chēng)量限

nominal range of use,標稱(chēng)使用范圍

nominal size,公稱(chēng)通徑

nominal temperature,標稱(chēng)溫度

nominal travel,標稱(chēng)行程

nominal value,標稱(chēng)值

nominal voltage ratio,標稱(chēng)電壓比

non-conformity,不合格

non-contact thermometry,非接觸測溫法

non-crystalline electrode,非晶體電極

non-delimiter byte,非定界字節

non-destructive inspection,無(wú)損探傷

non-destructive inspection machine,無(wú)損探傷機

non-dimensional [relative] velocity,無(wú)量綱[相對]速度

non-dispersive infra-red gas analyzer;NDIR gas analyzer,非色散紅外線(xiàn)氣體分析器；NDIR氣體分析器

non-engineering system simulation,非工程系統仿真

non-enveloped thermistor,非密封型熱敏電阻器

non-function type optic-fibre temperature transducer,非功能型光纖溫度傳感器

non-interacting control,無(wú)相關(guān)控制

non-interchangeable accessory,不可互換附件

non-isolated analogue input,非隔離的模擬輸入

non-line conversion,非線(xiàn)性轉換

non-linear damping,非線(xiàn)性阻尼

non-magnetic strain gauge,抗磁性應變計

non-Newtonian fluid,非牛頓流體

non-radioactive electron capture detector,無(wú)放射源電子捕獲檢測器

non-reference line imaginary real amplitude receiver,無(wú)參考線(xiàn)虛分量?jì)x

non-relevant failure,非關(guān)聯(lián)失效

non return magnetometer,無(wú)定向磁力儀

non rotational imaging,無(wú)旋轉成象

non-selective radiator,非選擇輻射體

non split stream injector,無(wú)分流進(jìn)樣器

non-uniformity of chart [paper] speed,紙速不均勻性

non-uniqueness,非唯一性

noncapacitive a.c.arc,非電容性交流電弧

nondeterminisitic control system,非確定性控制系統

nondeterministic model,非確定性模型

nondiffraction X-ray spectrometer,非衍射X射線(xiàn)光譜儀

nonequilibrium state,非平衡態(tài)

nonequilibrium system,非均衡系統

nonlinear characteristics,非線(xiàn)性特性

nonlinear control system,非線(xiàn)性控制系統

nonlinear control system theory,非線(xiàn)性控制系統理論

nonlinear estimation,非線(xiàn)性估計

nonlinear model,非線(xiàn)性模型

nonlinear prediction,非線(xiàn)性預報

nonlinear programming,非線(xiàn)性規劃

nonlinear scale,非線(xiàn)性標度

nonlinear system simulation,非線(xiàn)性系統仿真

nonlinear vibration,非線(xiàn)性振動(dòng)

nonlinear viscous damping,非線(xiàn)性粘性阻尼

nonlinearity,非線(xiàn)性

nonmetallic material testing machine,非金屬材料試驗機

nonreturn-to-zero (NRZ),不歸零制

normal barometer,標準氣壓表

normal beam technique,垂直法

normal beam testing,垂直法

normal calomel electrode,當量甘汞電極

normal distribution,正態(tài)分布

normal flow rate,正常流量

normal modes,正態(tài)振型

normal operating conditions,正常工作條件

normal-phase liquid chromatography,正相液相色譜法

normal probe,直探頭

normal station,普通站

normal stress,正應力

normal temperature strain gauge,常溫應變計

normal thermometer,標準溫度表

normalization method,歸一法

normalization regulator,歸一化調節器

normalized impedance,歸一化阻抗

normalized mass spectrum,歸一化質(zhì)譜

normalized reactance,歸一化電抗

normalized resistance,歸一化電阻

normally closed solenoid valve,常關(guān)式電磁閥

normally open solenoid valve,常開(kāi)式電磁閥

notch filter,節點(diǎn)濾波器

nozzle,噴嘴

n-th nodal unbalance,第n階振型不平衡諧量

N-type oxide gas sensor,N型氧化物氣敏元件

nuclear electric quadrupole moment resonance spectroscopy,核四極共振波譜法

Nuclear Instrument Module (NIM),核儀器模塊

nuclear magnetic double resonance,核磁雙共振（法）

nuclear magnetic resonance magnetometer,核磁共振磁強計

nuclear magnetic resonance spectroscopy;NMR spectroscopy,核磁共振波譜法

nuclear radiation thickness meter,核輻射厚度計

(nuclear)radiation transducer [sensor],（核）輻射式傳感器

nuclei counter,計核器

nude source,裸式離子源

null measurement,指零測量

null method,零位法

null method of measurement,零位測量法；指零測量法；零差測量法

null reading method,零讀法

number of degrees of freedom,自由度數

number of effective plate,有效板數

number of theoretical plate,理論板數

numeric key,數字鍵

numerical aperture (NA),數值孔徑

numerical control,數值控制

numerical value (of a quantity),（量的）數值

nutating disc flowmeter,（章動(dòng)）圓盤(pán)流量計

nutating flowmeter,章動(dòng)流量計

nutrients,營(yíng)養鹽

nutrients analyzer for seawater,海水營(yíng)養鹽分析器

Nyquist plot,奈奎斯特圖

O

object language,目標語(yǔ)言

object plane,物面

object program,目標程序

object wave,物體聲束

objective evidence,客觀(guān)證據

objective lens of the scanning electron microscope,掃描電子顯微鏡物鏡

objective lens of the transmission electron microscope,透射電子顯微鏡物鏡

oblique visibility,斜能見(jiàn)度

observability,可觀(guān)測性；能觀(guān)測性

observation and recording device,觀(guān)察和記錄裝置

ocean bottom seismograph,海底地震儀

ocean date station,浮標站

oceanographic geological instrument,海洋地質(zhì)儀器

oceanographic instrumentation,海洋儀器

oceanographic measuring system,海洋測量系統

oceanographic observation,海洋觀(guān)測

oceanographic survey,海洋調查

octave,倍頻程

octave(bandwidth)filter,倍頻程（寬帶）濾波器

octave filter set,倍頻程濾波器組

odd-even check,奇偶校驗

off-axis response,離軸響應

off-line,離線(xiàn)

off-line processing,離線(xiàn)處理；脫機處理

off-line system simulation,離線(xiàn)系統仿真

office automation (OA),辦公自動(dòng)化

office automation system (OAS),辦公自動(dòng)化系統

office information system (OIS),辦公信息系統

officially recognized standard,官方認可標準

offset,靜差

offset coefficient,靜差系數

oil-filled enclosure (Ex o),充油外殼（Ex o）

oil-water meter,原油水分儀

omegatron mass spectrometer,回旋質(zhì)譜計

omnidirectional microphone,全向傳聲器

on-cold column injector,冷柱頭進(jìn)樣器

one-dimensional location,線(xiàn)定位；一維空間定位

on-line,在線(xiàn)

on-line assistence,在線(xiàn)幫助

on-line measurement and frequency spectrum analysis,在線(xiàn)測量頻譜分析

on-line process gas chromatograph,在線(xiàn)過(guò)程氣相色譜儀

on-line processing,在線(xiàn)處理；聯(lián)機處理

on-line real-time processing,在線(xiàn)實(shí)時(shí)處理

on-line real-time system,聯(lián)機實(shí)時(shí)系統

on-line system simulation,在線(xiàn)系統仿真

on-off action,通斷作用

on-off controller,通斷控制器

one-man atmospheric submersible,常人常壓潛水器

one-third octave filter,1/3倍頻程濾波器

one-turm time of output shaft,輸出軸每轉時(shí)間

one-way communication,單向通信

open-circuit intermediate voltage,開(kāi)路中間電壓

open front case with pressure relief,帶泄壓裝置的前開(kāi)式外殼

open front case without pressure relief,無(wú)泄壓裝置的前開(kāi)式外殼

(open hole) caliper,井徑儀

open-jet wind tunnel,開(kāi)口式風(fēng)洞

open loop,開(kāi)環(huán)

open loop control,開(kāi)環(huán)控制

open loop control system,開(kāi)環(huán)控制系統

open loop electronic balance,開(kāi)環(huán)式電子天平

open-loop frequency response,開(kāi)環(huán)頻率響應

open-loop gain,開(kāi)環(huán)增益

open-loop gain characteristic,開(kāi)環(huán)增益特性

open loop pole,開(kāi)環(huán)極點(diǎn)

open loop process control,開(kāi)環(huán)過(guò)程控制

open loop remote control system,開(kāi)環(huán)遙測控制系統

open loop stabilization,開(kāi)環(huán)穩定

open loop transfer function,開(kāi)環(huán)傳遞函數

open loop voltage gain,開(kāi)環(huán)電壓增益

open loop zero,開(kāi)環(huán)零點(diǎn)

open source,裸式離子源

open system,開(kāi)放系統；開(kāi)環(huán)系統

open system interconnection (OSI),開(kāi)放系統互連

open tubular column,空心柱

opening valve time,開(kāi)閥時(shí)間

operating conditions,工作條件

operating error,工作誤差

operating infulence,工作條件影響

operating limits,極限工作條件

operating period,工作周期

operating pressure differential,工作壓差

operating system (OS),操作系統

operating temperature range,工作溫度范圍

operating time,工作時(shí)間

operational amplifier,運算放大器

operational reliability,運行可靠性

operational research model,運籌學(xué)模型

operational unit,運算器

operations research,運籌學(xué)

operative limits,極限工作條件

operator,操作員

operator command,操作員命令

operator's console,操作員操縱臺

operator's station,操作員站

optic fiber displacement meter,光纖式位移計

optic fiber position measuring instrument,光纖式位置測量?jì)x

optic fiber pressure transducer,光纖壓力傳感器

optic fiber tachometer,光纖式轉速表

optic fiber tachometric transducer,光纖式轉速傳感器

optical arm length,光臂長(cháng)度

optical Doppler effect,光的多普勒效應

optical fiber,光導纖維

optical fiber chemical sensor,光纖化學(xué)傳感器

optical fibre magnetometer,光纖磁強計

optical fiber sensor,光纖式傳感器

optical(measurement)method,光測法

optical micrometer,光學(xué)測微器

optical plummet,垂準儀；光學(xué)對中器

optical pumping,magnetometer,光泵磁強計；光泵磁力儀

optical(quantity)transducer(sensor),光（學(xué)量）傳感器

optical reading range,光學(xué)讀數范圍

optical spectrometer,光學(xué)光譜儀

optical system,光學(xué)系統

optical theodolite,光學(xué)經(jīng)緯儀

optical vibrometer,光學(xué)測振儀

optical wedge micrometer,光楔測微器

optima estimation,最優(yōu)估計

optimal control,最優(yōu)控制

optimal control law,最優(yōu)控制律

optimal control system,最優(yōu)控制系統

optimal control theory,最優(yōu)控制理論

optimal decision problem,最優(yōu)決策問(wèn)題

optimal solution,最優(yōu)解

optimal strategy,最做出策略

optimality principle,最優(yōu)性原理

optimization,（最）優(yōu)化

optimization layer,優(yōu)化層

optimization technique,最優(yōu)化技術(shù)

optimum frequency,最佳頻率

order,有序

order parameter,序參數

ordinary temperature thermistor,常溫熱敏電阻器

organic semiconductor gas transducer [sensor],有機半導體氣體傳感器

organic semiconductor humidity transduce [sensor],有機半導體濕度傳感器

organic semiconductor thermistor,有機半導體熱敏電阻器

orientation,定向

orientation control,定向控制

orifice,節流孔

orifice plate,孔板

orifice-and-plug flowmeter,錐塞式流量計

original system,原系統

originator,源發(fā)站

orthogonal distrortion,正交畸變

ortho-projector,正射投影儀

oscillating period,振蕩周期

oscillator,振蕩器

oscillograph,錄（示）波器

oscillographic polarograph,示波極譜儀

oscilloscope,示波器

outboard rotor,外重心轉子

outdoor location,戶(hù)外場(chǎng)所

outer package,外包裝

outlier,剔除值

output device,輸出單元；輸出設備

output equation,輸出方程

output error,輸出誤差

output feedback,輸出反饋

output fluctuation,輸出波動(dòng)

output force or torque stability,輸出激振力或力矩的穩定性

output impedance,輸出阻抗

output impedance of microphone,傳聲器輸出阻抗

output information,輸出信息

output matrix,輸出矩陣

output noise,輸出噪聲

output prediction method,輸出預估法

output shaft rotation clearance,輸出軸間隙角

output shaft rotation range,輸出軸轉角范圍

output shaft torque,輸出軸轉矩

output signal,輸出信號

output signal "one" level,輸出信號“1”電平

output signal "zero" level,輸出信號“0”電平

output state,輸出狀態(tài)

output stem travel clearance,輸出桿間隙位移

output system,輸出系統

output unit,輸出設備

output variable,輸出變量

output vector,輸出向量；輸出矢量

oval gear flowmeter,橢圓齒輪流量計

oval wheel flowmeter,橢圓齒輪流量計

oven temperature,箱溫

over-current protection,過(guò)電流保護

over-voltage protection,過(guò)電壓保護

overall design,總體設計

overdampin,非周期阻尼；過(guò)阻尼

overflow,溢出

overflow indication,溢出指示

overlapping averages,滑動(dòng)平均

overlapping event,交迭事件

overload,過(guò)載；超負荷

overload flow-rate,過(guò)載流量

over-load meter,過(guò)載儀

overpressure characteristic,超壓特性

overpressure failure,超壓破裂

overrange,過(guò)范圍

overrange limit,過(guò)范圍限

overshoot,過(guò)沖；超調量；過(guò)振比

overview panel,總貌畫(huà)面

overvoltage protection varistor,過(guò)電壓保護電壓敏電阻器

oxide thermistor,氧化物熱敏電阻器

oxygen bomb,氧彈

oxygen bomb calorimeter,氧彈式熱量計

oxygen (pressure)gauge,氧壓力表

oxygen regulator,氧氣減壓器

ozone analyzer,臭氧分析儀

ozone sonde,臭氧探空儀

ozone spectrophotometer,臭氧分光光度儀{{分頁(yè)}}

P

P-net,P-net總線(xiàn)

P-scope,P型顯示

P.T.C.thermistor,正溫度系數熱敏電阻器

p-type oxide gas sensor,P型氧化物氣敏元件

P-V-T-t technique,壓力-容積-溫度-時(shí)間法

pack,包裝件

package,包裝；包裝件

packaging,包裝

packaging standard,包裝標準

packed capillary column,真充毛細管柱

packed column,填充柱

packed-type solenoid valve,填料函型電磁閥

packet,包

packet mode,包方式

packet sequencing,包排序

packet switching,包交換

packing,包裝

packing box assembly,填料函組件

packing machine (liquid chromatographic column),（液相色譜柱）裝填機

packless solenoid valve,無(wú)填料函型電磁閥

page addressing,頁(yè)面尋址

page printer,頁(yè)式打印機

page-at-a-time printer,一次一頁(yè)印刷機；頁(yè)式印刷機

panel,盤(pán)；屏，畫(huà)面

panel mounting (pressure) gauge,盤(pán)裝壓力表

panoramic exposure,周向照射；全景照射

pantograph,縮放儀

paper based strain gauge,紙基應變計

paper chromatography,紙色譜法

paper tape,紙帶

paper tape punch,紙帶空孔機

paper tape reader,紙帶閱讀機

paper tape unit,紙帶單元

parachute drogue,漂流傘

parallax,視差

parallel computer,并行計算機

parallel crate controller,并行機箱控制器

parallel highway,并行信息公路

parallel operation,并行操作；并聯(lián)工作

parallel output system,并行輸出制

parallel plate micrometer,平板測微器

parallel processing,并行處理

parallel programming,并行程序設計

parallel transmission,并行傳輸

paramagnetic oxygen analyzer,順磁式氧分析器

parameter,參數

parametric input,參量輸入

parasitic echo,干擾反射波

parasitic voltage of voltage divider,分壓箱寄生電壓

parasol radiometer,傘式輻射計

parent-molecule ion,母分子離子

parity check,奇偶校驗

partial failure,部分失效

partial immersion,thermometer,局浸溫度計

partial pressure gauge (PPG)，分壓強計

partial radiation thermometer,部分輻射溫度計

partition chromatography,分配色譜法

partition coefficient,分配系數

partition isothem,分配等溫線(xiàn)

part-turn electric actuator,角行程電動(dòng)執行機構

Pascal,帕（斯卡）

pass-line deflection,跑偏

passing unregistered gas (PUG),漏記氣體

passive remote sensing,被動(dòng)遙感

passive transducer [sensor],無(wú)源傳感器

path,通路

path frame,通路幀

path protocol,通路協(xié)議

path unit,通路單元

pattern,探傷圖形

pattern coefficient,圖型系數

pattern recognition,模式識別

peak,峰

peak area,峰面積

peak base,峰底

peak detector,峰值檢波器

peak distortion,譜峰畸變

peak energy,峰能量

peak height,峰高

peak identification,譜峰鑒別

peak matching,峰匹配

peak of noise,噪聲高度

peak overlap,譜峰重疊

peak point,峰頂（點(diǎn)）

peak separation,峰距

peak shape factor,峰形系數

peak sound pressure,峰值聲壓

peak stripping,譜峰剝離

peak temperature,峰溫度

peak time,峰值時(shí)間

peak-to-peak value,峰峰值

peak-to-peak value of displacement,峰-峰值位移

peak (top) flatness,峰頂平直度

peak transmittance,峰值透過(guò)率

peak value,峰值

peak value of humidity,濕度峰值

peak value of temperature,溫度峰值

peak voltmeter,峰值電壓表

peak wavelength,峰值波長(cháng)

peak width,峰寬

peak width at half height,半高峰寬

Peltier coefficient,珀爾帖系數

Peltier heat,珀爾帖熱

pen,墨水筆

pen recorder,筆式記錄儀

pen rising mechanism,抬筆機構

pendulum impact testing machine,擺錘式?jīng)_擊試驗機

pendulum meter,擺儀

pendulum striking edge,擺錘沖擊刀刃

penetrameter,透度計；像質(zhì)計

penetrant inspection unit,滲透液清洗劑

penetrant testing method,滲透探傷法

penetrants,滲透液

Penning gauge,冷陰極電離規；潘寧規

percentage of theoretical slope (PTS),百分理論斜率

performance,性能

performance characteristics,性能特性

performance evaluation,性能指標

periodic and random deviations(PARD),周期和隨機偏差

periodic damping,周期阻尼；欠阻尼

periodic test,定期試驗

periodic vibration,周期振動(dòng)

periodic waves marker,周期波時(shí)標

peripheral control unit,外圍設備控制器

peripheral equipment,外圍設備

peripheral flow-rate,周緣流量

peripheral interface adapter(PIA),外圍接口適配器

peripheral transfer,外圍傳送

peristaltic multi-channel pump,多通道蠕動(dòng)泵

permanent flow-rate,常設流量

permanent-magnet-coil instrument,永磁動(dòng)圈式[磁電系]儀表

permanent magnetic lens,永磁透鏡

permanent-magnet movingcoil galvanometer,永磁動(dòng)圈式[磁電系]檢流計[振動(dòng)子]

permeability,滲透率

permeability tube,滲透管

permeameter,磁導計

permissible cumulative discharge of standard cell,標準電池允許累計放電量

permissible discharge of standard cell,標準電池允許放電量

persistent wave NMR spectroscope,邊疆波核磁共振波譜儀

personal error,人為誤差

petroleum oil detection buoy system,石油探測浮標系統

pH electrode assembly,pH復合電極

pH meter,pH計

pH transducer [sensor],pH傳感器

pH value,pH值

phase,相

phase analysis,相位分析

phase angle,相角

phase angle stabilization,相角穩定

phase contrast,位相襯度

phase controlled circuit breaker,斷電相位控制器

phase datum mark,相位基準標記

phase detection,相位檢測

phase detector,鑒相器

phase difference,相位差

phase difference torque transducer,相位差式轉矩傳感器

phase displacement,相位差；角誤差

plase distance meter,相位式測距儀

phase indicator,相位指示器

phase lage,相位滯后

phase lead,相位超前

phase locus,相軌跡

phase margin,相位裕度

phase measurement,相位的測量

phase meter,相位表

phase modulation (PM),相位調制；調相

phase of unbalance,不平衡相位

phase plane,相平面

phase plane portrait,相平面圖

phase ratio,相比率

phase reference generator,參考相位發(fā)生器

phase response,相位響應

phase sensitive detector,相敏檢波器

phase sequence indicator,相序指示器

phase space,相空間

phase trajectory,相軌跡

phase transition,相變

phase variable,相變量

phase-continuous FSK,相位連續FSK

phase-crossover frequency,相位交越頻率

phase-frequency characteristics,相頻特性

phase-shift ultrasonic flowmeter,相移式超聲流量計

phon,方（響度級的單位）

phosphorescence,磷光

photo conduction tube,光導管

photo electron spectroscopy (PES),光電子能譜法

photo-electrical coded compass,光電碼羅盤(pán)

photo-electrostatic display recorder,感光靜電顯示記錄儀

photo ionization,光電離

photo resistor,光敏電阻器

photo-sensitive recorder,感光顯示記錄儀

photo sensor,光敏元件

photo-theodoliti,攝影經(jīng)緯儀

photoacoustic spectrometry,光聲光譜法

photoconductive transducer [sensor],光導式傳感器

photoelectric colorimeter,光電比色法

photoelectric comparator,光電比較儀

photoelectric effect,光電效應

photoelectric fluxmeter,光電磁通表

photoelectric length meter,光電式長(cháng)度計

photoelectric position detector,光電式位置檢測器

photoelectric roll gap measuring instrument,光電式輥縫測量?jì)x

photoelectric tachometer,光電式轉速表

photoelectric tachometric transducer,光電式轉速傳感器

photoelectric thermometer,光電溫度計

photoelectric transmissometer,光電透射儀

photoelectric width meter [gauge],光電式寬度計

photoelectro magnetic element,光電磁敏元件

photoionization detector (PID),光離子化檢測器

photometer,光度計

photometric linearity,光度測量線(xiàn)性

photomultiplier,光電倍增管

phototheodilite,攝影經(jīng)緯儀；照相經(jīng)緯儀

phototube,光電管

photovoltaic cell,光電池

photovoltaic transducer [sensor],光伏式傳感器

physical layer (PL),物理層

physical model,物理模型

physical modeling,物理建模

physical property type transducer [sensor],物性型傳感器

physical quantity transducer [sensor],物理量傳感器

physical similarity,物理相似

physical simulation,物理仿真

physical symbol system,物理符號系統

physiological quantity transducer [sensor],生理量傳感器

picture spectrograph,圖象攝譜儀

piezoelectric acceleration transducer,壓電式加速度傳感器

piezoelectric effect,壓電效應

piezoelectric force transducer,壓電式力傳感器

piezoelectric microphone,壓電傳聲器

piezoelectric pressure transducer,壓電式壓力傳感器

piezoelectric transducer [sensor],壓電式傳感器；壓電換能器

piezoelectric vibrator,壓電振動(dòng)器

piezoelectric vibrometer,壓電式振動(dòng)計

piezometer ring,均壓環(huán)

piezo-resistance effect,壓阻效應

piezoresistive acceleration transducer,壓阻式加速度傳感器

piezoresistive accelerometer,壓阻式加速度計

piezoresistive effect,壓阻效應

piezoresistive pressure transducer,壓阻式壓力傳感器

piezoresistive transducer [sensor],壓阻式傳感器

piezoresistive vibrometer,壓阻式振動(dòng)計

piggy-back microbiological sampler,復背式微生物采集器

pilot,先導閥

pilot valve,指揮器

pilot balloon theodolite,測風(fēng)經(jīng)緯儀

pilot-operated regulator,指揮器操作型自力式調節閥

pilot-operated solenoid valve,先導型電磁閥

pin-cushion distortion,枕形畸變；正畸變

pinger,水聲信標

pinion,軸齒輪

pink noise,粉紅噪聲

pipe prover,標準體積管；管式校準器

pipe reducer,異徑接管

Pirani gauge,電阻規；皮拉尼規

Pirani vacuum gauge,皮拉尼真空計

piston,活塞

piston actuator,活塞執行機構

piston-cylinder assembly,活塞部件

piston gauge,活塞式壓力計

piston gauge with equilibrium liquid,帶平衡液柱活塞式壓力計

piston gauge with re-entrant cylinder column,反壓活塞式壓力計

piston prover,活塞校準器

piston rotation perdurability,活塞下降速度

piston with weight carrier,帶有底盤(pán)裝置的活塞

pistonphone,活塞發(fā)聲器

Pitot static tub