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卫星通信系统 | |||
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卫星通信系统 |
satellite communications system : 107 phrases in 12 subjects |
Air defense | 7 |
Aviation | 6 |
Business | 1 |
Cartography | 1 |
Earth sciences | 6 |
Electronics | 27 |
General | 3 |
Management | 1 |
Space | 41 |
Technology | 4 |
Telecommunications | 2 |
United States | 8 |