| Acronym | Meaning |
 | RU | Russia (ISO 3166 Digram) |
| LRIP | Low Rate Initial Production |
| FCO | UK Foreign And Commonwealth Office |
| SGS | South Georgia And The South Sandwich Islands (ISO 3166 Trigram) -Svalbard Ground Station (Landsat) - Soci?t? G?n?rale De Surveillance |
| RX | Medical Prescription (possibly From Latin Recipere |
| CH | Chieftain Tank -China (FIPS 10-4 Country Code) - Switzerland (ISO 3166 Digram; From Latin Confoederatio Helvetica) |
| TOAD | Temporary |
| IRN | Iran (ISO 3166 Trigram) |
| LUG | Linux User Group |
| SVM | Support Vector Machine (artificial Intelligence) |
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