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| satellite surveillance | |||
| satellite monitoring | |||
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卫 星 监测 : 54 phrases in 11 subjects |
| Automobiles | 1 |
| Business | 3 |
| Cartography | 1 |
| Earth sciences | 8 |
| Electronics | 6 |
| Environment | 1 |
| Space | 23 |
| Technology | 4 |
| Telecommunications | 1 |
| United Nations | 3 |
| United States | 3 |
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