Tracking and Data Relay
| Satellite
| tracking and data relay abbr. | |
| avia. | 跟踪与数据继电器 |
| satellite abbr. | |
| gen. од. | 人造卫星 |
| desert. од. | 随伴体; 随体 |
| met. | 伴生矿物 |
| oil | 附属物; 外围岩体; 卫星井 |
| rem.sens. од. | 卫星 |
| |||
| 跟踪与数据继电器 | |||
| 跟踪与数据中继 | |||
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Tracking and Data Relay : 17 phrases in 7 subjects |
| Air defense | 1 |
| Aviation | 4 |
| Earth sciences | 1 |
| Electronics | 3 |
| Information technology | 1 |
| Space | 5 |
| United States | 2 |