| Acronym | Meaning |
 | NRL | Naval Research Laboratory |
| VPF | Vertical Processing Facility |
| PSF | Point Spread Function |
| SEPAC | Space Experiments With Particle Accelerators |
| MLI | Multi-Layer Insulation |
| WINDII | Wind Imaging Interferometer |
| ATM | Amateur Telescope Maker |
| UBM | Unpressurized Berthing Mechanism |
| MB | Manned Base |
| DPSS | DATA Processing Services Subsystem |
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