| Acronym | Meaning |
| HVEM | High-voltage Electron Microscopy |
| AFSEF | AIRS Facility Subsystem Emission Factors |
| QCT | Quasiclassical Trajectory (method For Mol. Collision Calcns.) |
| NIH | National Institutes Of Health |
| ETD | Enhanced Trickle Down (watershed Acidification Model) |
| DIT | Diffusive Interfacial Transport |
| ALAPO | Association Of Local Air Pollution Control Officers |
| SPEELS | Spin-polarized Electron Energy Loss Spectroscopy |
| RMSEP | Root-mean-square Error Of Prediction |
| ASLE | American Society Of Lubrication Engineers (USA |