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| satellite-based observing system | |||
| satellite observation system; satellite observatories | |||
| satellite-missile observation system | |||
| 卫星观测 系统: 14 phrases in 8 subjects |
| Earth sciences | 1 |
| Electronics | 3 |
| General | 2 |
| Space | 4 |
| Technology | 1 |
| United Kingdom | 1 |
| United Nations | 1 |
| United States | 1 |
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