| Acronym | Meaning |
| SFRS | Spin-flip Raman Scattering |
| AFC | Automatic Frequency Control |
| RAA | Rigid-atom Approxn. (in Electronic Structure Calcns.) |
| TOR | Tropospheric Ozone Research |
| DLS | Dynamic Light Scattering |
| DFB | Diffusion Brazing |
| ASP | Activated Sludge Plant Or Process |
| HEDS | Human Exploration And Development Of Space |
| CMT | Computed Microtomography |
| MRL | Method Reporting Limit |