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| 调谐电路 | |||
| 调谐槽路 | |||
| tuned circuit: 32 phrases in 8 subjects |
| Air defense | 4 |
| Electronics | 9 |
| General | 2 |
| Geophysics | 2 |
| Shipbuilding | 3 |
| Space | 1 |
| Technology | 9 |
| Telecommunications | 2 |
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