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| 调频反馈 | |||
| English thesaurus | |||
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| FMFB (ssn) | |||
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frequency modulation feedback : 8 phrases in 5 subjects |
| Air defense | 2 |
| Electronics | 3 |
| Geophysics | 1 |
| Military | 1 |
| Technology | 1 |
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