pressure plate anemometer,壓板風速表

pressure range,壓力范圍

pressure ratio,壓力比

pressure recovery,壓力恢复

pressure regulator,減壓器

pressure regulator spring,減壓器彈簧

pressure regulator valve,減壓器滑閥

pressure regulator valve pin,減壓器閥針

pressure regulator valve spring,減壓器閥彈簧

pressure relief plug,泄壓塞[板]

pressure repeater,壓力重复器

pressure seal,壓力隔离裝置

pressure sensitivity of microphone,傳聲器聲壓靈敏度

pressure spectrum level,聲壓譜級

pressure (step-type)controller,壓力（位式）控制器

pressure switch,壓力開關

pressure tappings [taps],取壓口

pressure test chamber,气壓試驗箱

pressure tide gauge,壓力式驗潮儀

pressure tight case,气密外殼

pressure transducer [sensor],壓力傳感器

pressure transmitter,壓力變送器

pressure tube anemometer,壓管風速表

pressure type wave gauge,壓力式測波儀

pressure vessel,壓力容器

pressurized enclosure (Ex p),正壓外殼（Ex p）

prevacuum,前級真空，粗真空

prevailing wind,盛行風

preventive maintenance,預防性維修；預防性維護

primary coil,一次線圈

primary current (of a current transformer),（電流互感器的）一次電流

primary device,一次裝置

primary feedback,主反饋

primary force standard machine,力基准机

primary standard,基准（器）

primary voltage,一次電壓

primary winding,一次繞組

principal component analysis (PCA),主成分分析法

principal period of calorimetric test,量熱實驗的主期

principal plane,主平面

principal point,主點

principal stress,主應力

principle of measurement,測量原理

printer,打印机；印刷机

printing current meter,印刷海流計

printing recorder,打印式記錄儀

priority,优先權；优先級

prism mass spectrometer,棱鏡質譜計

prism monochromator,棱鏡單色儀

probe,探頭

probe coil,探頭線圈

probe coil clearance,探頭線圈間隙

probe index,探頭入射點

probe ion,探針离子

probe method,探針法

probe microphone,探管傳聲管

probe rotational scan,擺動掃查

probe to flaw distance,探頭-缺陷距离

problem oriented language,面向問題的語言

procedure-oriented language,面向過程的語言

process automation,過程自動化

process control,過程控制

process control computer,過程控制計算机

process control level,過程控制級

process control software,過程控制軟件

process control system,過程控制系統

process engineer's console,過程工程師操縱台

Process Fieldbus;PROFIBUS，過程現場總線；PROFIBUS現場總線

process gas chromatograph,流程气相色譜儀

process I/O,過程輸入/輸出；過程I/O

process input/output channel,過程輸入輸出通道

process input/output device,過程輸入輸出裝置

process mass spectrometer,流程質譜計

process measurement,過程測量

process model,過程模型

process-oriented sequential control,過程定序順序控制

process-oriented simulation,面向過程的仿真

processibility test,工藝性能試驗

processor,處理机；處理器；處理程序

prod magnetizing method,支杆法；圓棒電极磁化法

prods,支杆触頭

product specification,產品規范

product standard,產品標准

production budget,生產預算

production function,生產函數

Profibus-DP (Decentralized Periphery),PROFIBUS-分散型外圍設備總線

Profibus-FMS (Field Message Specification),PROFIBUS-現場報文規范總線

Profibus-PA (Process Automation),PROFIBUS-過程自動化總線

Profile,行規

profit control,利潤控制

profit forecast,利潤預測

program,程序

program architecture,程序体系結构

program-controlled testing machine,程序控制試驗机

program correctness,程序正确性

program debugging tool,程序調試工具

program evaluation and review technique (PERT),計划評審技術

program execution time,程序執行時間