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| 信息操作: 53 phrases in 13 subjects |
| Air defense | 2 |
| Aviation | 4 |
| Cryptography | 2 |
| Earth sciences | 3 |
| Electronics | 15 |
| General | 2 |
| Genetics | 1 |
| Information technology | 5 |
| Multimedia | 1 |
| Oil processing plants | 1 |
| Space | 2 |
| Technology | 13 |
| Telecommunications | 2 |
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