| Acronym | Meaning |
 | ERNS | Emergency Response Notification System |
| TWSM | Two-way Shape Memory |
| AHU | Air Handling Unit |
| PQCD | Perturbative Quantum Chromodynamics |
| ONWI | Office Of Nuclear Waste Isolation |
| HRA | Health Risk Assessment |
| AHCPR | Agency For Health Care Policy And Research |
| PETN | Pentaerythritol Tetranitrate |
| UKB | Unrestricted Kinetic Balance (in Calcns. Of Wave Functions And Energies) |
| MRO | Medium Range Order |
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