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| satellite tracking data; spacecraft tracking data | |||
| 卫星 跟 踪数据: 34 phrases in 9 subjects |
| Aviation | 5 |
| Business | 1 |
| Cartography | 1 |
| Earth sciences | 3 |
| Electronics | 5 |
| General | 1 |
| Information technology | 1 |
| Space | 14 |
| United States | 3 |
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