P
P-net,P-net总线
P-scope,P型显示
P.T.C.thermistor,正温度系数热敏电阻器
p-type oxide gas sensor,P型氧化物气敏元件
P-V-T-t technique,压力-容积-温度-时间法
pack,包装件
package,包装；包装件
packaging,包装
packaging standard,包装标准
packed capillary column,真充毛细管柱
packed column,填充柱
packed-type solenoid valve,填料函型电磁阀
packet,包
packet mode,包方式
packet sequencing,包排序
packet switching,包交换
packing,包装
packing box assembly,填料函组件
packing machine (liquid chromatographic column),（液相色谱柱）装填机
packless solenoid valve,无填料函型电磁阀
page addressing,页面寻址
page printer,页式打印机
page-at-a-time printer,一次一页印刷机；页式印刷机
panel,盘；屏，画面
panel mounting (pressure) gauge,盘装压力表
panoramic exposure,周向照射；全景照射
pantograph,缩放仪
paper based strain gauge,纸基应变计
paper chromatography,纸色谱法
paper tape,纸带
paper tape punch,纸带空孔机
paper tape reader,纸带阅读机
paper tape unit,纸带单元
parachute drogue,漂流伞
parallax,视差
parallel computer,并行计算机
parallel crate controller,并行机箱控制器
parallel highway,并行信息公路
parallel operation,并行操作；并联工作
parallel output system,并行输出制
parallel plate micrometer,平板测微器
parallel processing,并行处理
parallel programming,并行程序设计
parallel transmission,并行传输
paramagnetic oxygen analyzer,顺磁式氧分析器
parameter,参数
parametric input,参量输入
parasitic echo,干扰反射波
parasitic voltage of voltage divider,分压箱寄生电压
parasol radiometer,伞式辐射计
parent-molecule ion,母分子离子
parity check,奇偶校验
partial failure,部分失效
partial immersion,thermometer,局浸温度计
partial pressure gauge (PPG)，分压强计
partial radiation thermometer,部分辐射温度计
partition chromatography,分配色谱法
partition coefficient,分配系数
partition isothem,分配等温线
part-turn electric actuator,角行程电动执行机构
Pascal,帕（斯卡）
pass-line deflection,跑偏
passing unregistered gas (PUG),漏记气体
passive remote sensing,被动遥感
passive transducer [sensor],无源传感器
path,通路
path frame,通路帧
path protocol,通路协议
path unit,通路单元
pattern,探伤图形
pattern coefficient,图型系数
pattern recognition,模式识别
peak,峰
peak area,峰面积
peak base,峰底
peak detector,峰值检波器
peak distortion,谱峰畸变
peak energy,峰能量
peak height,峰高
peak identification,谱峰鉴别
peak matching,峰匹配
peak of noise,噪声高度
peak overlap,谱峰重叠
peak point,峰顶（点）
peak separation,峰距
peak shape factor,峰形系数
peak sound pressure,峰值声压
peak stripping,谱峰剥离
peak temperature,峰温度
peak time,峰值时间
peak-to-peak value,峰峰值
peak-to-peak value of displacement,峰-峰值位移
peak (top) flatness,峰顶平直度
peak transmittance,峰值透过率
peak value,峰值
peak value of humidity,湿度峰值
peak value of temperature,温度峰值
peak voltmeter,峰值电压表
peak wavelength,峰值波长
peak width,峰宽
peak width at half height,半高峰宽
Peltier coefficient,珀尔帖系数
Peltier heat,珀尔帖热
pen,墨水笔
pen recorder,笔式记录仪
pen rising mechanism,抬笔机构
pendulum impact testing machine,摆锤式冲击试验机
pendulum meter,摆仪
pendulum striking edge,摆锤冲击刀刃
penetrameter,透度计；像质计
penetrant inspection unit,渗透液清洗剂
penetrant testing method,渗透探伤法
penetrants,渗透液
Penning gauge,冷阴极电离规；潘宁规
percentage of theoretical slope (PTS),百分理论斜率
performance,性能
performance characteristics,性能特性
performance evaluation,性能指标
periodic and random deviations(PARD),周期和随机偏差
periodic damping,周期阻尼；欠阻尼
periodic test,定期试验
periodic vibration,周期振动
periodic waves marker,周期波时标
peripheral control unit,外围设备控制器
peripheral equipment,外围设备
peripheral flow-rate,周缘流量
peripheral interface adapter(PIA),外围接口适配器
peripheral transfer,外围传送
peristaltic multi-channel pump,多通道蠕动泵
permanent flow-rate,常设流量
permanent-magnet-coil instrument,永磁动圈式[磁电系]仪表
permanent magnetic lens,永磁透镜
permanent-magnet movingcoil galvanometer,永磁动圈式[磁电系]检流计[振动子]
permeability,渗透率
permeability tube,渗透管
permeameter,磁导计
permissible cumulative discharge of standard cell,标准电池允许累计放电量
permissible discharge of standard cell,标准电池允许放电量
persistent wave NMR spectroscope,边疆波核磁共振波谱仪
personal error,人为误差
petroleum oil detection buoy system,石油探测浮标系统
pH electrode assembly,pH复合电极
pH meter,pH计
pH transducer [sensor],pH传感器
pH value,pH值
phase,相
phase analysis,相位分析
phase angle,相角
phase angle stabilization,相角稳定
phase contrast,位相衬度
phase controlled circuit breaker,断电相位控制器
phase datum mark,相位基准标记
phase detection,相位检测
phase detector,鉴相器
phase difference,相位差
phase difference torque transducer,相位差式转矩传感器
phase displacement,相位差；角误差
plase distance meter,相位式测距仪
phase indicator,相位指示器
phase lage,相位滞后
phase lead,相位超前
phase locus,相轨迹
phase margin,相位裕度
phase measurement,相位的测量
phase meter,相位表
phase modulation (PM),相位调制；调相
phase of unbalance,不平衡相位
phase plane,相平面
phase plane portrait,相平面图
phase ratio,相比率
phase reference generator,参考相位发生器
phase response,相位响应
phase sensitive detector,相敏检波器
phase sequence indicator,相序指示器
phase space,相空间
phase trajectory,相轨迹
phase transition,相变
phase variable,相变量
phase-continuous FSK,相位连续FSK
phase-crossover frequency,相位交越频率
phase-frequency characteristics,相频特性
phase-shift ultrasonic flowmeter,相移式超声流量计
phon,方（响度级的单位）
phosphorescence,磷光
photo conduction tube,光导管
photo electron spectroscopy (PES),光电子能谱法
photo-electrical coded compass,光电码罗盘
photo-electrostatic display recorder,感光静电显示记录仪
photo ionization,光电离
photo resistor,光敏电阻器
photo-sensitive recorder,感光显示记录仪
photo sensor,光敏元件
photo-theodoliti,摄影经纬仪
photoacoustic spectrometry,光声光谱法
photoconductive transducer [sensor],光导式传感器
photoelectric colorimeter,光电比色法
photoelectric comparator,光电比较仪
photoelectric effect,光电效应
photoelectric fluxmeter,光电磁通表
photoelectric length meter,光电式长度计
photoelectric position detector,光电式位置检测器
photoelectric roll gap measuring instrument,光电式辊缝测量仪
photoelectric tachometer,光电式转速表
photoelectric tachometric transducer,光电式转速传感器
photoelectric thermometer,光电温度计
photoelectric transmissometer,光电透射仪
photoelectric width meter [gauge],光电式宽度计
photoelectro magnetic element,光电磁敏元件
photoionization detector (PID),光离子化检测器
photometer,光度计
photometric linearity,光度测量线性
photomultiplier,光电倍增管
phototheodilite,摄影经纬仪；照相经纬仪
phototube,光电管
photovoltaic cell,光电池
photovoltaic transducer [sensor],光伏式传感器
physical layer (PL),物理层
physical model,物理模型
physical modeling,物理建模
physical property type transducer [sensor],物性型传感器
physical quantity transducer [sensor],物理量传感器
physical similarity,物理相似
physical simulation,物理仿真
physical symbol system,物理符号系统
physiological quantity transducer [sensor],生理量传感器
picture spectrograph,图象摄谱仪
piezoelectric acceleration transducer,压电式加速度传感器
piezoelectric effect,压电效应
piezoelectric force transducer,压电式力传感器
piezoelectric microphone,压电传声器
piezoelectric pressure transducer,压电式压力传感器
piezoelectric transducer [sensor],压电式传感器；压电换能器
piezoelectric vibrator,压电振动器
piezoelectric vibrometer,压电式振动计
piezometer ring,均压环
piezo-resistance effect,压阻效应
piezoresistive acceleration transducer,压阻式加速度传感器
piezoresistive accelerometer,压阻式加速度计
piezoresistive effect,压阻效应
piezoresistive pressure transducer,压阻式压力传感器
piezoresistive transducer [sensor],压阻式传感器
piezoresistive vibrometer,压阻式振动计
piggy-back microbiological sampler,复背式微生物采集器
pilot,先导阀
pilot valve,指挥器
pilot balloon theodolite,测风经纬仪
pilot-operated regulator,指挥器操作型自力式调节阀
pilot-operated solenoid valve,先导型电磁阀
pin-cushion distortion,枕形畸变；正畸变
pinger,水声信标
pinion,轴齿轮
pink noise,粉红噪声
pipe prover,标准体积管；管式校准器
pipe reducer,异径接管
Pirani gauge,电阻规；皮拉尼规
Pirani vacuum gauge,皮拉尼真空计
piston,活塞
piston actuator,活塞执行机构
piston-cylinder assembly,活塞部件
piston gauge,活塞式压力计
piston gauge with equilibrium liquid,带平衡液柱活塞式压力计
piston gauge with re-entrant cylinder column,反压活塞式压力计
piston prover,活塞校准器
piston rotation perdurability,活塞下降速度
piston with weight carrier,带有底盘装置的活塞
pistonphone,活塞发声器
Pitot static tube,皮托静压管
Pitot tube,皮托管
pivot galvanometer,轴尖式检流计
pivot knife-plane,支点刀座
plain glass window,防护白玻璃观察窗
planar array,平面阵
planar (quad) location,平面定位
plane bearing,平面支承
plane grating,平面光栅
plane separation,平面分离
plane separation network,平面分离电路
plane table equipment,平板仪
plane table thermoconductivity meter,行星齿轮减速器
planimeter,求积仪
plankton bucket,浮游生物网底管
plankton counting chamber,浮游生物计数框
plankton haul [trawl],浮游生物拖网
plankton net,浮游生物网
plankton pump,浮游生物泵
plankton tow net,浮游生物拖网
plankton volume indicator,浮游生物体积测量器
plant environment,工厂环境
plant growth test chamber,植物生长试验箱
plasma chromatograph-mass spectrometer (PC-MS),等离子色谱-质谱联用仪
plasma chromatography,等离子蚀刻机
plastic sampler,塑料采水器
plastic window,塑料观察窗
plasticity,塑性
plate wave,板波
plate wave technique,板波法
plateau,平台；坪
Platinum-10% Rhodium/Platinum thermocoupe,铂铑10-铂热电偶
Platinum-13% Rhodium/Platinum thermocouple,铂铑13-铂热电偶
Platinum-30% Rhodium/Platinum-6% Rhodium thermocouple,铂铑30-铂铑6热电偶
platinum resistance thermometer sensor,铂热电阻
playback apparatus,回放仪
plotter,绘图机；绘图仪；地震剖面仪
plotting tablet,标图板
plug-in unit,插件
plug valve,旋塞阀
plumb,垂直器
plunger,动铁芯
plunger pump,柱塞泵
plunger tube,隔磁管
plunger viscometer,活塞式粘度计
pluviograph,雨量计
pluvioscope,降水测定器
pneumatic actuator,气动执行机构
pneumatic bubbling gauge,补气引压式验潮仪
pneumatic control,气动控制
pneumatic limit operator,气动极限操作器
pneumatic piston gauge,气动活塞式压力计
pneumatic pump,气动泵
pneumatic rotary actuator,角行程气动执行机构
pneumatic system,气动压力系统
pneumatic thickness meter,气动厚度计
point drift,点漂
point filament,点头灯丝
point location,点定位
point-to-point connection,点对点连接
point-to-point control,点对点控制；点位控制
point-to-point control system,点到点控制系统
point to point resolution,点分辨力
point-to-point transmission,点对点传输
pointer,指针；指示字
pointer adjustment,指针调整器
pointer galvanometer,指针式检流计
pointer instrument,指针式仪表
pointer length,指针长度
pointer travel,指针转角
points of mean axial fluid velocity,平均轴向流体速度点
poise nut,平衡铊
polar aurora,极光
polar coordinate type potentiometer,极坐标式电位差计
polar plot,极线图
polarimeter,偏振表；偏振计
polarimetry,旋光法
polariscope,偏振仪
polarity indicator,极性响应时间
polarization voltage,极化电压
polarized cartridge capacitance,极化极头电容
polarogram,极谱图
polarograph,极谱仪
polarograph quantitative detection limit,极谱仪定量检测限
polarographic cell,极谱池
polarographic maxima,极谱极大
polarography,极谱法
pole,极点
pole assignment,极点配置
pole piece,极靴
polling,探询；轮询
pollution,污染
polyamide,聚酰胺
polyethylene,聚乙烯
polypropylent,聚丙烯
polytetrafluror-ethylene (teflon),聚四氟乙烯（特氟隆）
polyvinyliden fluoride,聚氟乙烯
popular scanning electron microscope,普及型扫描电子显微镜
popular transmission electron microscope,普及型透射电子显微镜
population,总体
porcelain insulator,绝缘瓷瓶
porous polymer beads,高分子多孔小球
porous-layer open-tubular column;PIOT column,多孔层空心柱
port,通信口；端口
port guiding,阀口导向
portable hardness tester,携带式硬度计
portable multipurpose instrument set,轻便综合观测仪
portable X-ray detection apparatus,携带式X射线探伤机
portability,可移植性
portable (measuring) instrument,可[便]携式（测量）仪表
position,位置
position encoder,位置编码器
position error,位置误差；四角误差
position error coefficient,位置误差系数
position feedback,位置反馈
position indicating switch,阀位指示开关
position limit switch,行程开关
position transducer [sensor],位置传感器
positioner,定位器
positive displacement flowmeter,容积式流量计
positive feedback,正反馈
positive knives linear,正刀联线
positive-negative action,正负作用
positive negative three-step action,正负三位作用
positive pressure,正压
positive shock response spectrum,正冲击响应谱
positive strain,正应变
positive system,正系统
positive temperature coefficient thermistor,正温度系数热敏电阻
post emulsifiable dye penetrant testing method,后乳化性着色渗透探伤法
post emulsifiable fluorescent penetrant testing method,后乳化性荧光渗透探伤法
post emulsifiable penetrant,后乳化性渗透液
potential evaporation,蒸发率
potentiometer,电位器
potentiometer compass,电位器罗盘
potentiometer pressure transducer,电位器式压力传感器
potentiometer type pressure transducer,电位器式压力传感器
potentiometric analyzer,电位式分析器
potentiometric displacement transducer,电位滴定（法）
potentiometric transducer [sensor],电位器式传感器
potentiometry,电位法
powder-filled enclosure (Ex q），充砂外壳(Ex q）
powder sample,粉末样品
power amplifier,功率放大器
power compensation differential scanning calormeter,功率补偿差示扫描量热仪
power-compensation differential scanning calorimetry,功率补偿型差示扫描量热法
power factor meter,功率因数表
power source,主电源
power spectral density,功率谱密度
power supply device,电源装置
power supply frequency,电源频率
power supply voltage,电源电压
power system automation,电力系统自动化
power-fail circuit,电源故障电路
practical response time,实用响应时间
practical salinity scale 1978,1978实用盐标
pre-conditioning time,预处理时间
pre-vacuum chamber,预抽室
pre-weighing,预称装置
preamplifier,前置放大器
precipitation gauge,雨量量筒
precipitation intensity,降水强度
precise stereoplotter,精密立体测图仪
precision,精密度
precision disc grinder,样品磨薄机
precision micrometer [microdisplacement] inspection instrument,精密测微检定仪
precision of measurement,测量精密度
precision (pressure) gauge,精密压力表
predictive control,预测控制
preliminary adjustment,初调；预调整
premix burner,预混燃烧器
preparative chromatography,制备色谱法
preparative gas chromatograph,制备气相色谱仪
preparative liquid chromatograph,制备液相色谱仪
prepayment meter,预付费电度表
press,压块机
pressure,压力；压强
pressure adjusting screw,压力调节螺杆
pressure altitude formula,气压测高公式
pressure bell,引压钟
pressure compensator,压力补偿器
pressure constant state,恒压状态
pressure/depth conversion factor,压力-深度转换系数
pressure facility,压力设备
pressure frequency response of microphone,传声器声压频率响应
pressure gauge,压力表
pressure gauge tester,压力表校验器
(pressure)gauge with back connection,轴向压力表
(pressure)gauge with bottom connection,径向压力表
(pressure)gauge with electric contact,电接点压力表
(pressure)gauge with transmission device,电远传压力表
pressure gradient correction factor,压力梯度校正因子
pressure gradient microphone,压差传声器
pressure in the ocean,海洋中的压力
pressure instrument,压力仪表
pressure isolating chamber,压力隔离容器
pressure level measuring device,压力液位测量装置
pressure loss,压力损失
pressure measuring set,压力测量仪
pressure microphone,压强传声器
(pressure) multiplier,倍压器
pressure-operated plankton net,压力开关浮游生物网
pressure plate anemometer,压板风速表
pressure range,压力范围
pressure ratio,压力比
pressure recovery,压力恢复
pressure regulator,减压器
pressure regulator spring,减压器弹簧
pressure regulator valve,减压器滑阀
pressure regulator valve pin,减压器阀针
pressure regulator valve spring,减压器阀弹簧
pressure relief plug,泄压塞[板]
pressure repeater,压力重复器
pressure seal,压力隔离装置
pressure sensitivity of microphone,传声器声压灵敏度
pressure spectrum level,声压谱级
pressure (step-type)controller,压力（位式）控制器
pressure switch,压力开关
pressure tappings [taps],取压口
pressure test chamber,气压试验箱
pressure tide gauge,压力式验潮仪
pressure tight case,气密外壳
pressure transducer [sensor],压力传感器
pressure transmitter,压力变送器
pressure tube anemometer,压管风速表
pressure type wave gauge,压力式测波仪
pressure vessel,压力容器
pressurized enclosure (Ex p),正压外壳（Ex p）
prevacuum,前级真空，粗真空
prevailing wind,盛行风
preventive maintenance,预防性维修；预防性维护
primary coil,一次线圈
primary current (of a current transformer),（电流互感器的）一次电流
primary device,一次装置
primary feedback,主反馈
primary force standard machine,力基准机
primary standard,基准（器）
primary voltage,一次电压
primary winding,一次绕组
principal component analysis (PCA),主成分分析法
principal period of calorimetric test,量热实验的主期
principal plane,主平面
principal point,主点
principal stress,主应力
principle of measurement,测量原理
printer,打印机；印刷机
printing current meter,印刷海流计
printing recorder,打印式记录仪
priority,优先权；优先级
prism mass spectrometer,棱镜质谱计
prism monochromator,棱镜单色仪
probe,探头
probe coil,探头线圈
probe coil clearance,探头线圈间隙
probe index,探头入射点
probe ion,探针离子
probe method,探针法
probe microphone,探管传声管
probe rotational scan,摆动扫查
probe to flaw distance,探头-缺陷距离
problem oriented language,面向问题的语言
procedure-oriented language,面向过程的语言
process automation,过程自动化
process control,过程控制
process control computer,过程控制计算机
process control level,过程控制级
process control software,过程控制软件
process control system,过程控制系统
process engineer's console,过程工程师操纵台
Process Fieldbus;PROFIBUS，过程现场总线；PROFIBUS现场总线
process gas chromatograph,流程气相色谱仪
process I/O,过程输入/输出；过程I/O
process input/output channel,过程输入输出通道
process input/output device,过程输入输出装置
process mass spectrometer,流程质谱计
process measurement,过程测量
process model,过程模型
process-oriented sequential control,过程定序顺序控制
process-oriented simulation,面向过程的仿真
processibility test,工艺性能试验
processor,处理机；处理器；处理程序
prod magnetizing method,支杆法；圆棒电极磁化法
prods,支杆触头
product specification,产品规范
product standard,产品标准
production budget,生产预算
production function,生产函数
Profibus-DP (Decentralized Periphery),PROFIBUS-分散型外围设备总线
Profibus-FMS (Field Message Specification),PROFIBUS-现场报文规范总线
Profibus-PA (Process Automation),PROFIBUS-过程自动化总线
Profile,行规
profit control,利润控制
profit forecast,利润预测
program,程序
program architecture,程序体系结构
program-controlled testing machine,程序控制试验机
program correctness,程序正确性
program debugging tool,程序调试工具
program evaluation and review technique (PERT),计划评审技术
program execution time,程序执行时间
program file,程序文件
program file,程序文件
program library,程序库
program linking,程序连接
program mode,程序方式
program read-in,程序读入
program run,程序运行
program set station,程序设定操作器
program specification,程序规格说明
program validation,程序确认
programmable controller,可编程序控制器
programmable logic controller (PLC),可编程序逻辑控制器
programmable terminal,可编程终端
programme control digital logger,程控数字测井仪
programmed control,程序控制
programmed control system,程序控制系统；程控系统
programmed flow gas chromatography,程序变流气相色谱法
programmed pressure gas chromatography,程序变压气相色谱法
programmed temperature gas chromatography,程序升温气相色谱法
programmer,程序（设计）员
programmer's console,程序员操纵台
programming,程序设计
programming flowchart,程序设计流程图
programming support environment,程序设计支持环境
projector,投影镜
projector for transferring,投影转绘仪
propeller,（螺）旋浆
propeller anemograph,螺旋浆风向风速计
propeller type current-meter,旋桨式流速计
proportional action;P-action,比例作用；P-作用
proportional action coefficient,比例作用系数
proportional band(of a controller),(控制器的）比例带
proportional bandwidth filter,比例带宽滤波器
proportional control,比例控制
proportional controller; P controller,比例控制器；P控制器
proportional electric actuator,比例式电动执行机构
proportional gain,比例增益
proportional limit,比例极限
proportional plus derivative action;PD-action,比例微分作用；PD-作用
proportional plus derivative control,比例微分控制
proportional plus derivative controller;PD controller,比例微分控制器；PD控制器
proportional plus integral action;PI-action,比例积分作用；PI-作用
proportional plus integral control,比例积分控制
proportional plus integral controller;PI controller,比例积分控制器；PI控制器
proportional plus integral plus derivative action;PID-action,比例积分微分作用；PID-作用
proportional plus integral plus derivative control,比例积分微分控制
proportional plus integral plus derivative controller;PID controller,比例积分微分控制器；PID控制器
proportionality transmitter,比值变送器
prospecting potentiometer,探矿电位计
protected junction,保护端
protective current transformer,保护用电流互感器
protective device,保护装置
protective tube,保护管
protective voltage transformer,保护用电压互感器
protocol,协议
protocol engineering,协议工程
proton(precession) magnetometer,质子旋进磁力仪
prototype,原型
prototype process time,原型过程时间
prototype variable,原型变量
prover (ball or piston),（球式或活塞式）校准装置
proving [test] rotor,校验转子
pseudocolor density slicer,假彩色密度分割仪
psychrometer,干湿球湿度计；干湿表
psychrometric [hygromtric] tables,湿度查算表
psychrometric constant,湿度计算常数
psychrometric formula,湿度公式
pull-rod,拉杆
pulsating flow,脉动流
pulsating flow of mean constant flow-rate,恒定平均流量的脉动流
pulse code modulation (PCM),脉码调制；脉冲编码调制
pulse control,脉冲控制
pulse duration,脉冲持续时间
pulse duration modulation,脉冲宽度调制
pulse duration modulation magnetic tape record type strong-motion instrument,脉冲调宽式磁带记录强震仪
pulse echo technique,脉冲反射法
pulse flip angle,脉冲回转角
pulse Fourier transform NMR,脉冲傅立叶变换核磁共振（法）
pulse Fourier transform NMR spectroscope,脉冲傅里叶变换核磁共振波谱仪
pulse frequency modulation control system,脉冲调频控制系统
pulse frequency modulation magnetic tape record type strong-motion instrument,脉冲调频式磁带记录强震仪
pulse pileup rejection,脉冲堆积排除器
pulse polarograph,脉冲极谱仪
pulse position modulation,脉冲位置调制
pulse recurrence frequency,脉冲重复频率
pulse repetition frequency,脉冲重复频率
pulse transducer [sensor],脉搏传感器
pluse type airborne electromagnetic instrument,脉冲式航空电磁仪
pulse type NMR spectroscope,脉冲核磁共振波谱仪
pulse-width modulation,脉冲宽度调制
pulse width modulation control system; PWM control system,脉冲调宽控制系统
pulsed-light ceilometer,脉冲光束云高计
pulsed-light cloud-height indicator,脉冲光束云高计
pulsed optical feedback,脉冲光反馈
pump,泵
punched card,穿孔卡片
punched tape,穿孔带
Pusey and Jones indentation hardness number,赵氏硬度值
Pusey and Jones indentation instrument,赵氏硬度计
pyranograph,总日射计
pyranometer,总日射表
pyrgeometer,地球辐射表；大气辐射表
pyrheliometer,直接日射强度表；日射表
pyroelectric optical transducer [sensor],热释电式光传感器
pyroelectric temperature transducer [sensor],热释电式温度传感器
pyrolysis apparatus,裂解器
pyrolysis gas chromatography,裂解气相色谱法
pyrometer lamp,高温计灯泡
pyrradiometer,全辐射表