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| 通道链接 | |||
| 信道连接 | |||
| channel link: 25 phrases in 8 subjects |
| Air defense | 4 |
| Aviation | 2 |
| Communications | 1 |
| Computer networks | 1 |
| Electronics | 6 |
| Information technology | 3 |
| Space | 3 |
| Telecommunications | 5 |
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