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| 双边带调幅 | |||
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| 双边带调幅 | |||
| double sideband amplitude modulation: 9 phrases in 6 subjects |
| Air defense | 1 |
| Business | 1 |
| Electronics | 3 |
| Geophysics | 2 |
| Military | 1 |
| Technology | 1 |
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