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交图 : 63 phrases in 14 subjects |
| Antennas and waveguides | 1 |
| Aviation | 1 |
| Economy | 1 |
| Education | 2 |
| Electronics | 2 |
| General | 30 |
| Geophysics | 3 |
| Linguistics | 1 |
| Mathematics | 1 |
| Nautical | 1 |
| Oil processing plants | 1 |
| Rail transport | 3 |
| Sociology | 1 |
| Technology | 15 |
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