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锥线 : 70 phrases in 11 subjects |
| Aerodynamics | 1 |
| Cinema equipment | 1 |
| Construction | 2 |
| Electronics | 3 |
| General | 22 |
| Helicopters | 2 |
| Mathematics | 9 |
| Military | 1 |
| Radio | 4 |
| Technology | 24 |
| Telecommunications | 1 |
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