| Acronym | Meaning |
 | ACB | Air-operated Circuit Breaker |
| LDA | Local Data Acquisition |
| AOS | Archive And Operations System |
| BSDI | Berkeley Software Design |
| TIAA | Teachers Insurance And Annuity Association |
| PIDC | Precision Instrument Development Center |
| URSI | International Union Of Radio Science |
| FOIA | Freedom Of Information Act |
| OD | Outside Diameter |
| OSTPC | Open Systems Transition Planning Committee |
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