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PID control｜比例积分微分调节rn
piece｜（通风〕部件rn
pier bath｜单间浴室rn
pier between two windows｜窗间墙rn
piezometric tube｜测压管rn
pilot balloon｜测风球rn
pilot boiler｜试验锅炉rn
pilot burner｜点火燃烧器rn
pilot…tube｜指示灯rn
pin hole bar｜带孔炉排片，板状炉排片rn
pinchbeck tube｜波纹管rn
pipe assembler｜管工rn
pipe bearer｜管支座rn
pipe bend｜管子弯头rn
pipe bender｜弯管器rn
pipe bending machine｜弯管机rn
pipe bracket｜管钩rn
pipe branch｜管子分叉rn
pipe bridge｜管支架rn
pipe bushing｜管衬套rn
pipe coil｜光面管放热器rn
pipe fittings｜管道配件rn
pipe grab｜抓管工具rn
pipe on blocks｜垫块支托的管道rn
pipe radiator｜光面管散热器rn
pipe section｜管段rn
piping accessories｜水系统辅材rn
piping assembly｜配管rn
piping symbol｜配管图例rn
Pitot tube｜皮托流速测定管，皮托管＇插入流动流体中与流向平行的管子。管嘴对着流向，用以测量流动流体的全压力。通常指双头探头‘
型皮托管，一头测量流体的全压力，另一头测量其静压力，其差值用来计算流速＇rn
Pitot…static pressure tube｜皮托静压管rn
pittsburg seam｜（风管四角）卷边接缝＇咬口＇rn
plain butt…weld｜对接焊；对焊rn
plain tube｜光管rn
Plan｜平面图rn
plane of unbalancing｜不平衡面rn
plane…table｜平板仪rn
plant for smoke absorption｜吸收烟灰设备rn
plaster slab｜石膏板rn
plastic butterfly valve with chain｜塑料拉链式蝶阀rn
plastic substance｜可塑物质rn
plate bending machine｜弯板机rn
plate bending roll｜卷板机rn
plate blower｜平叶片送风机rn
plate finned tube｜肋＇翅＇片管rn
plate heat exchanger｜板式换热器rn
plate type absorber｜隔板式吸声装置rn
plenum box｜静压箱rn
plenum chamber｜送风小室，通风恒压室＇空调系统中的一室或一空间，用以辅助空气的均匀分配＇rn
plenum space｜稳压层rn
pliability｜柔韧性，可挠性rn
plug｜丝堵rn
plumb｜测锤rn
plumb bob｜垂球rn
plumb line｜铅垂线rn
plumber｜管工rn
plumbing｜卫生工程，管道工程rn
plumbing equipment｜卫生设备rn
plumbing fixture｜卫生器具rn
plume｜烟羽rn
plume rise height｜烟羽抬升高度rn
PM｜project manager 项目经理rn
PMV｜predicted mean vote 预期平均热感觉指数rn
PNC…curve｜噪声评价PNC曲线rn
PNC…curves｜噪声评价PNC曲线rn
pneumatic｜气动rn
pneumatic brake｜气力制动机构rn
pneumatic conveying｜气力输送rn
pneumatic membrane type thermostat｜气动薄膜式恒温器，气动薄膜式温度调节器rn
pneumatic shock absorber｜气压减振器rn
pneumatic transport｜气力输送rn
pneumatic tube｜压缩空气管道，气动输气管rn
pneumatic valve｜气动调节阀rn
pneumo…electrical convertor｜气…电转换器rn
point of ebullition｜沸腾点rn
Poisson's distribution｜泊松分布rn
Poisson's number｜泊松数rn
polar body｜极体rn
polyester fibers｜聚酯纤维rn
polyphosphate inhibitors｜多磷酸盐抑制剂＇防腐蚀用的材料＇rn
poor in carbon｜低碳的rn
porous block｜多孔滤板rn
porous slab｜多孔板rn
porous slab type underdrainage system｜多孔板式地下排水系统rn
portability｜轻便性，可携性；移动式rn
portable｜便携式；手提的，轻便的，轻型的rn
portable blower｜轻便鼓风机rn
portable boiler｜移动式锅炉rn
portable cold room｜移动式冷间rn
portable dust collector｜轻便吸尘器rn
portable fire extinguisher｜便携式灭火器rn
portable gas pressure gauge｜轻便式气体压力计rn
portable oscilloscope｜携带示波器rn
portable pump｜移动泵rn
portable test instrument｜便携式测试仪器rn
portable vacuum cleaner｜移动真空吸尘器rn
positioner｜定位器rn
positive feedback｜正反馈rn
possibility｜可能性rn
potassium carbonate｜碳酸钾rn
Pound｜磅＇英制计量单位，等于0。454kg（公斤）＇rn
pound per square inch｜磅/平方英寸rn
pounds per square inch absolute｜磅/英寸2（绝对压力）rn
powdered activated carbon｜粉末活性炭rn
powdered active carbon process｜粉状活性炭法rn
powdered…coal burner｜煤粉燃烧炉rn
power booster pump｜电动增压泵rn
power brake｜机力制动器rn
power cable｜输电线，动力电缆rn
power distribution｜配电；配电装置rn
power to feed coal to the boiler｜锅炉给煤耗电量rn
powerroof ventilator｜屋顶通风机rn
ppb。｜parts per billion 十亿分率rn
PPD｜predicted percentage of dissatisfied 预期不满意者的百分数rn
practicability｜实用性rn
Prandtl number｜普朗特数＇即流体的比热、粘度，导热系数的一个函数＇rn
Prandtl's tube｜普朗特管rn
pre。b。｜pre…bend 预弯rn
preassembled｜预先装配的rn
preassembly｜预装配，预组装rn
pre…bend｜预弯rn
prechamber｜预燃室，前室rn
prebustion｜预燃＇在前置燃烧室内燃烧＇rn
predicted mean vote｜预期平均热感觉指数rn
predicted percentage of dissatisfied｜预期不满意者的百分数rn
predominant wind direction｜主导风向，最多风向rn
preestablished｜预先安装的，预先设立的，预定的rn
prefabricated｜预制的rn
prefabricated architecture｜预制建筑，装配建筑rn
prefabricated construction｜预制结构rn
prefabricated panel｜预制隔热板rn
prefabricated slab｜预制板rn
prefabrication｜预制rn
preferred noise criteria curve｜噪声评价PNC曲线rn
preferred noise criteria curves｜噪声评价PNC曲线rn
press…button control｜按钮控制rn
pressure｜压力rn
pressure above the atmosphere｜表压力，过剩压力rn
pressure atomizing burner｜喷燃器rn
pressure balance｜压力平衡rn
pressure balance line｜压力平衡管rn
pressure balance valve｜压力平衡阀rn
pressure blower｜增压器rn
pressure bottle｜盛压缩气体的钢瓶rn
pressure cabin｜压力舱，高压舱rn
pressure chamber｜压力室，（锅炉）集气包，贮气器rn
pressure differential｜压差rn
pressure distribution｜压力分布rn
pressure distribution chart｜压力分布图rn
pressure drop｜压力损失rn
pressure enthalpy chart｜压焓图rn
pressure equalizing tube｜均压管rn
pressure gage｜压力表rn
pressure in boiler｜锅炉内压力rn
pressure in bustion chamber｜燃烧室压力，炉膛压力rn
pressure injection burner｜压力喷射式燃烧装置rn
pressure jet burner｜压力喷射燃烧器rn
pressure of steam supply｜供汽压力rn
pressure oil burner｜压力喷油燃烧器rn
pressure reducing valve｜减压阀rn
pressure relief device｜泄压装置rn
pressure relief valve｜安全阀rn
pressure rubber tubing｜耐压橡皮管rn
pressure spray type burner｜压力喷雾式燃烧器rn
pressure thermometer｜压力式温度计rn
pressure tube｜测压管；承压管rn
pressure tube anemometer｜测压管式风速计rn
pressure volume chart｜压容图rn
preventable｜可防止的，可预防的rn
primary air fan…coil system｜风机盘管加新风系统rn
primary air system｜新风系统rn
primary branch｜主支管rn
primary return air｜一次回风rn
primary vibration｜基本振动rn
probability｜概率，几率；可能性rn
probable｜概率的，可能的，假定的rn
probable error｜概率误差rn
probe｜试探，探查；探头，传感器rn
process｜过程rn
process air conditioning｜工艺性空气调节rn
process variable｜可调变量rn
Profile｜剖面rn
profile tube｜异型管rn
program control｜程序控制rn
program debug｜程序调整rn
programmable controller｜可编程序控制器rn
prohibit｜禁＇阻＇止rn
project manager｜项目经理rn
proportional｜成比例的，相称的rn
proportional action｜比例动作＇作用＇rn
proportional amplifier｜比例放大器rn
proportional and floating controller｜比例…无静差调节器rn
proportional band｜比例带rn
proportional bend｜比例区域＇范围＇rn
proportional control｜比例调节rn
proportional control factor｜比例调节系数rn
proportional controller｜比例调节器rn
proportional counter｜正比计数器，比例计算机rn
proportional plus automatic reset action｜比例自动复位作用rn
proportional plus integral