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抛 物面 : 89 phrases in 13 subjects |
| Antennas and waveguides | 6 |
| Astronautics | 1 |
| Aviation | 1 |
| Electronics | 5 |
| General | 24 |
| Mathematics | 4 |
| Mechanic engineering | 1 |
| Military | 3 |
| Nanotechnology | 1 |
| Nautical | 1 |
| Oil processing plants | 1 |
| Technology | 40 |
| Telecommunications | 1 |
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