| Acronym | Meaning |
 | MTR | Magnetic Tape Recorder |
| MRCR | Measurement Requirement Change Request |
| PRR | Preliminary Requirements Review |
| GSI | Glide Slope Indicator |
| ETC | Earth Terrain Camera |
| TCP | Test Checkout Procedure |
| HAL/S | High Order Programming Language For Spacelab Usage |
| DC | Distribution Control Assembly |
| RCVS | Remote Control Video Switch |
| HWWS | Hyperfiltration Wash Water Recovery System |
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