| Acronym | Meaning |
 | OOS | Orbit-to-Orbit Stage |
| VFO | Variable Frequency Oscillator |
| LCT | Launch Countdown |
| SBHC | Speed Brake Hand Controller |
| ECG | Electrocardiograph |
| SCEA | Signal Conditioning Electronics Assembly |
| MSBLS | Microwave Scanning Beam Land Station |
| MBC | Maximum Breathing Capacity |
| MSS | Mechanical Support Systems |
| MIT | Master InstructionTape |
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