?压力泵    pressure pump

?压力比    pressure ratio

?减压阀    pressure reducing valve

?调压阀    pressure regulating valve

?减压装置    pressure release device

?压力开关    pressure switch

?压力试验    pressure test

?压力发热焊接    pressure thermit welding

?呼吸阀    pressure vacuum relief valve (or breather)

?压速复式涡轮机    pressure velocity compound turbine

?压力容器    pressure vessel

?压力焊接,锻接    pressure welding

?压焓图    pressure-enthalpy diagram

?压[力]时[间]图,压力历程图    pressure-time (P-T) diagram

?压[力]时[间]图,压力历程图    pressure-time diagram

?压容图    pressure-volume (P-V) diagram

?压容图    pressure-volume diagram

?压水式反应器    pressurized water reactor (PWR)

?预力    prestressing

?先行小组合代码    pre-sub code

?恒风    prevailing wind

?防动索,固定索    preventer

?艉后拉索    preventer backstay (or stay)

?制动控索    preventer guy

?帆锥,索针,火叉    pricker

?火叉    pricker bar

?火叉    pricker bar (or pricker)

?抓斗挖泥船    priestman (or grab) dredger

?抓斗挖泥船    priestman dredger

?主空气,初级空气    primary air

?一次燃烧区域    primary combustion zone

?初冷却剂    primary coolant

?内层绝缘    primary insulation

?主构件    primary member

?初级齿轮    primary pinion

?主电源    primary source

?主应力    primary stress

?初级转轮    primary wheel

?初次燃烧区    primary zone

?原动机    prime mover

?底漆,起动注给器    primer

?初给,起动注给,汽水共腾,刷底漆,引火    priming