?活塞下部泵作用    PUP (= piston underside pumping)

?跳动阀    puppet (or poppet) valve

?扩力装置,复滑车组    purchase

?复滑车    purchase block

?压载专用舱    pure ballast tank (PBT)

?汽车专用[运输]船    pure car carrier (PCC)

?驱气,冲洗,排气    purging

?净油柜    purified oil tank

?净油机,净化器,净化剂    purifier

?事务部    purser department

?巾着网渔船,围网渔船    purse-sein netter (or purse seiner)

?围网渔船,巾着网渔船    purse-seiner

?推[型拖]船    push boat (or pusher)

?按钮    push button

?推入配合    push fit

?推杆,挺杆    push rod

?推杆(柴油机)    push rod

?推动阀(柴油机)    push valve

?推动阀    push valve

?推拉索    push/pull cable

?按钮开关    push-button switch

?推驳船    pusher barge

?推进桅    pushermast

?推出式建造法    pushing building system

?油灰,补土    putty

?抽油灰枪    putty gun (or red lead injector)

?油灰泵    putty pump

?压力容积线图    PV (= pressure volume) diagram

?焊接后热处理    PWHT (= post weld heat treatment)

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

?高温计    pyrometer