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| 前向波 | |||
| 前向［正向］波 | |||
| 直达波 | |||
| 正向波; 前进波 | |||
| forward wave: 21 phrases in 10 subjects |
| Air defense | 2 |
| Aviation | 1 |
| Business | 1 |
| Electronics | 6 |
| Geophysics | 1 |
| Gymnastics | 1 |
| Navigation | 1 |
| Oil / petroleum | 1 |
| Radio | 2 |
| Technology | 5 |
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