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螺旋对 : 29 phrases in 9 subjects |
| Aerohydrodynamics | 1 |
| Antennas and waveguides | 2 |
| Automated equipment | 1 |
| Aviation | 2 |
| General | 5 |
| Medical | 2 |
| Military | 1 |
| Nautical | 1 |
| Technology | 14 |
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