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| 时间 调制: 48 phrases in 12 subjects |
| Air defense | 7 |
| Construction | 1 |
| Earth sciences | 1 |
| Electronics | 15 |
| General | 2 |
| Geophysics | 3 |
| Information technology | 2 |
| Metallurgy | 1 |
| Radio | 2 |
| Remote sensing | 1 |
| Space | 3 |
| Technology | 10 |
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