| Acronym | Meaning |
 | PLIF | Planar Laser-Induced Fluorescence |
| BY | Burundi (FIPS 10-4 Country Code) - Belarus (ISO 3166 Digram) |
| FLIP | Flight Information Publication |
| SGP | Singapore (ISO 3166 Trigram) |
| ASCIET | All Services Combat Identification Evaluation Team |
| SI | Sinhalese Language (ISO 639-1 Code) |
| PSA | Paralysis Society Of America - Pharmaceutical Society Of Australia - Pressure-Sensitive Adhesive - Production Services Association - Prostate Specific Antigen - Public Service Announcement - Public Service Association |
| AJ | Azerbaijan (FIPS 10-4 Country Code) |
| MS | Millisiemens |
| DSN | Deep Space Network |
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