| Acronym | Meaning |
 | POTS | Plain Old Telephone Service (cf. PANS) - Postural Orthostatic Tachycardia Syndrome |
| TACDAR | Tactical Detection And Reporting |
| ERTS | Earth Resources Technology Satellite (became Landsat) |
| ECBR | European Coalition For Biomedical Research |
| GMBH | Gesellschaft Mit Beschr?nkter Haftung (German |
| AAWC | Anti-Air Warfare Commander |
| Q2 | Second Quarter |
| NS | Nanosecond |
| HEU | Highly Enriched Uranium |
| CH | Chieftain Tank -China (FIPS 10-4 Country Code) - Switzerland (ISO 3166 Digram; From Latin Confoederatio Helvetica) |
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