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integration time : 38 phrases in 11 subjects |
| Air defense | 3 |
| Aviation | 3 |
| Earth sciences | 3 |
| Electronics | 5 |
| Engineering geology | 1 |
| General | 2 |
| Geophysics | 2 |
| Hydrology | 1 |
| Rail transport | 1 |
| Space | 9 |
| Technology | 8 |
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