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| 辐射卫星 | |||
| 辐射卫星 (美国空军空间辐射测量卫星) | |||
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radiation satellite : 37 phrases in 8 subjects |
| Aviation | 1 |
| Cartography | 1 |
| Earth sciences | 5 |
| Electronics | 3 |
| Geophysics | 2 |
| Space | 18 |
| Technology | 3 |
| United States | 4 |
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