| Abbreviation | Definition |
|---|---|
| NQME | Nonsecular Quantum Master Equation |
| NSCM | Nordic Seminar on Computational Mechanics |
| NSMM | National Society of Metal Mechanics |
| NVCS | Nissan Variable Cam System |
| OBL | Orthopaedic Biomechanics Laboratories |
| OCI | Optimised Contractor Involvement |
| OHVD | Overhead Ventilation Duct |
| OIBG | Orthopaedic and Injury Biomechanics Group |
| OIBG | Orthopaedic Injury Biomechanics Group |
| OLTC | On Line Tube Cleaning |
| OPMT | One Piece Multi-Tool |
| OTR | On The Road |
| OTR | Oxygen Transfer Rate |
| PCLM | purpose coherence language mechanics |
| PCRI | Process Compensated Resonant Inspection |
| PDK | Porsche Doppelkupplungsgetriebe |
| PFBR | Pumped Flow Biofilm Reactors |
| PFM | Pretty Fast Mechanics |
| PFRC | Piezoelectric Fiber Reinforced Composite |
| PGV | Professional-Grade Valve |