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| electronic band spectra | |||
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| electronic band spectra | |||
| electronic band spectrum | |||
| 电子带谱: 8 phrases in 6 subjects |
| Air defense | 1 |
| Chemistry | 1 |
| Electronics | 1 |
| Shipbuilding | 1 |
| Space | 1 |
| Technology | 3 |
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