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| 高频波; 短波 | |||
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| 短波; 高频波 | |||
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high frequency wave : 20 phrases in 7 subjects |
| Air defense | 1 |
| Automobiles | 3 |
| Electronics | 3 |
| General | 1 |
| Geophysics | 1 |
| Space | 1 |
| Technology | 10 |
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