| Acronym | Meaning |
 | LDS | LanLanding |
| TR2 | Payload Furnished Mars Tape Recorder (2 Of 2) |
| LRSI | Low-temperature Reusable Surface Insulation |
| VOR-DME | VHF Omni Range-UHF Distance Measuring Equipment |
| USA | United States Of America |
| HVDS | Hypergolic Vapor Detection System |
| EU | Electronic Unit |
| T. | B.Toggle Buffer |
| GDA | Gimbal Drive Actuator/Assembly |
| OR | OPerational Right |
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