| Acronym | Meaning |
 | LST | Large Space Telescope |
| APA | Allied Pilot's Association |
| HEOS | Highly Eccentric Orbit Satellite |
| SPARC | Stratospheric Processes And Their Role In Climate |
| AGS | Alternating-gradient Synchrotron |
| EEC | European Economic Community |
| NSFNF | Non-NSF Non-funded |
| ACA | Applied Combinatorial Analysis |
| MPOA | Multi-Protocol Over ATM |
| NAE | National Aeronautical Establishment |
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