| Acronym | Meaning |
| PB | Particle Beam |
| STOIIP | Stock Tank Oil Initially In Place |
| CFHT | Canada-France-Hawaii Telescope |
| BI | Bond Increment (method In Calcns. On Large Molecules) |
| SQC | Sediment Quality Criteria |
| APDG | Antisymmetrized Product Of Delocalized Geminals (wave Function) |
| FOMBT | First-order Many-body Theory |
| LPA | Local Plasma Approxn. (in Calcns. Of Stopping Powers For Ions By Films) |
| AF | Atomic Fluorescence |
| ESMS | Electrospray Ionization Mass Spectrometry |