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| электрические принципиальные схемы: 40 phrases in 14 subjects |
| Aviation | 2 |
| Caspian | 1 |
| Construction | 1 |
| Electrical engineering | 5 |
| Electricity | 1 |
| Electronics | 6 |
| Gas processing plants | 2 |
| General | 2 |
| Mass media | 1 |
| Microelectronics | 3 |
| Oil / petroleum | 1 |
| Sakhalin | 7 |
| Technology | 6 |
| Telecommunications | 2 |