| Acronym | Meaning |
 | AFNB | US Air Force Scientific Advisory Board |
| FFP | Firm Fixed Price |
| TCAS-II | Traffic Alert And Collision Avoidance System |
| DC | Dublin Core--metadata |
| ACHEM | Atmospheric Chemistry Model |
| AU | Astronomical Unit |
| DBSS | Directed Balloon Sounding System |
| GPS | Geophysical Processor System |
| AGT | Advanced Ground Transport |
| LSI | Lunar Science Institute |
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