| 項目 |
英語 |
| P3レベル | P3 level |
| P4レベル | P4 level |
| PABX | private automatic branch exchange |
| PAC | polyaluminium chloride |
| PAL | perimeter annual load |
| PAL方式 | phase alternation by line system |
| PCM | Phase Change Materials |
| PCO | primary cutout switch |
| PDA | personal digital assistance |
| PDCAサイクル | PDCA cycle |
| PD制御 | PD control |
| PF・CB形キュービクル受電設備 | cubicle type unit substation with PF and CB |
| PF・S形キュービクル受電設備 | cubicle type unit substation with PF and S |
| PFI | Private Finance Initiative |
| PF管 | plastic flexible conduit |
| pH | hydrogen-ion exponent |
| PID制御 | PID control |
| PI制御 | PI control |
| P-i線図 | P-I chart |
| PM | particulate matter |
| PMV | predicted mean vote |
| POE | post occupancy evaluation |
| PPD | predicted percentage of dissatisfied |
| PRTR法 | Pollutant Rerease and Transfer Register law |
| PSALI | permanent supplementary artificial lighting in interiors |
| PT | potential transformer |
| PVC | polyvinyl chloride |
| Pアルカリ度 | P-alkalinity |
| Pトラップ | P-trap |
| P型ニ級発信機 | P type class 2 manual fire alarm station |
| P型一級発信機 | P type class 1 manual fire alarm station |
| P型受信機 | P type control panel |
| P制御 | proportional control |
