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channel amplifier : 29 phrases in 10 subjects |
| Astronautics | 8 |
| Electronics | 1 |
| Energy industry | 1 |
| Makarov | 1 |
| Mass media | 1 |
| Nanotechnology | 1 |
| Nuclear and fusion power | 1 |
| Nuclear physics | 2 |
| Technology | 4 |
| Telecommunications | 9 |
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