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| импульсы напряжений: 68 phrases in 21 subjects |
| Astronautics | 1 |
| Automated equipment | 3 |
| Automobiles | 1 |
| Computers | 1 |
| Electrical engineering | 7 |
| Electricity | 4 |
| Electronics | 7 |
| Energy industry | 3 |
| Geophysics | 2 |
| Information technology | 5 |
| Makarov | 4 |
| Mass media | 6 |
| Military | 1 |
| Nuclear and fusion power | 1 |
| Oil / petroleum | 1 |
| Physics | 1 |
| Security systems | 1 |
| Shipbuilding | 2 |
| Technology | 13 |
| Transformers | 3 |
| Welding | 1 |