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| forward wave | |||
| 正 向 波: 27 phrases in 11 subjects |
| Air defense | 2 |
| Construction | 1 |
| Electric machinery | 1 |
| Electronics | 5 |
| Finances | 1 |
| General | 1 |
| Oil / petroleum | 3 |
| Otorhinolaryngology | 1 |
| Radio | 1 |
| Technology | 9 |
| Telecommunications | 2 |
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