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| elektron: 34 phrases in 9 subjects |
| Chemistry | 1 |
| Electronics | 1 |
| Magnetics | 2 |
| Physics | 6 |
| Radio | 11 |
| Radiology | 8 |
| Semiconductors | 2 |
| Thermal Energy | 1 |
| Vacuum tubes | 2 |
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