| Acronym | Meaning |
 | SU | Soviet Union (ISO 3166 Digram; Obsolete 1992) - Sudan (FIPS 10-4 Country Code) |
| PIG | Pipeline Inspection Gauge |
| VDMOS | Vertical Double-diffused MOS Transistor (vee-dee-moss) |
| ARSC | Arctic Region Supercomputing Center |
| ONRA | Office National D'?tudes Et De Recherches A?rospatiales (French |
| ELINT | Electronic Intelligence |
| FZRA | Freezing Rain (METAR Code) |
| ATA | Advanced Technology Attachment (IBM Personal Computer) - Afghan Transitional Authority - Allen Telescope Array -Antarctica (ISO 3166 Trigram) |
| SWORDS | Special Weapons Observation Reconnaissance Detection System |
| NOC | UK. National Oceanography Centre |
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