| Acronym | Meaning |
 | HBT | Heflex Bio-Engineering Test |
| BA | Breathing Air |
| B&W | Black And White |
| LAAD | Los Angeles Aircraft Division (Rockwell) |
| MCP | Mission Control Programmer |
| FCD | Flight Control Division (JSC) |
| MOCV | Manual 02 Control Valve |
| PSIA | Pounds Per Square Inch Absolute |
| JSL | Jet Select Logic |
| PPS | Pneumatic Power Subsystem |
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