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| 媒体访问: 21 phrases in 10 subjects |
| Air defense | 2 |
| Automobiles | 2 |
| Aviation | 1 |
| Communications | 1 |
| Computer networks | 3 |
| Cryptography | 1 |
| Electronics | 1 |
| Information technology | 2 |
| Multimedia | 2 |
| Telecommunications | 6 |
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