| Acronym | Meaning |
 | NVR | Non-Verification Required |
| PLS | Payload Systems |
| ORI | Operational Readiness Inspection |
| MEM | Module Exchange Mechanism |
| PRC | People'sRepublic Of China (Payload) |
| PFM | Platform |
| ESVS | Escape System Ventilation System |
| ICA | Item Change Analysis |
| RADAR | Radio Detecting And Ranging |
| R | BARRadius Vector Axis |
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