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| amplificateur de voie | |||
| répéteur de voie; répéteur de canal | |||
| channel amplifier: 18 phrases in 6 subjects |
| Earth sciences | 2 |
| Electronics | 4 |
| Information technology | 3 |
| Nuclear physics | 2 |
| Radio | 3 |
| Радиоактивное излучение | 4 |
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