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| блок усилителя | |||
| усилительная система, система усилителей (Speleo) | |||
| система усилителя | |||
| amplifier system: 15 phrases in 10 subjects |
| Astronautics | 1 |
| Drilling | 1 |
| Electrical engineering | 1 |
| Electronics | 1 |
| Geophysics | 2 |
| Household appliances | 1 |
| Military | 1 |
| Oil / petroleum | 1 |
| Technology | 2 |
| Telecommunications | 4 |