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峰线 : 27 phrases in 9 subjects |
| Antennas and waveguides | 1 |
| Electronics | 3 |
| General | 9 |
| Mathematics | 1 |
| Oil and gas | 1 |
| Radio | 1 |
| Rail transport | 3 |
| Road works | 1 |
| Technology | 7 |
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