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switching center : 157 phrases in 20 subjects |
| Abbreviation | 1 |
| Automated equipment | 2 |
| Aviation | 2 |
| Communications | 9 |
| Computer networks | 4 |
| Computers | 3 |
| Diplomacy | 1 |
| Electrical engineering | 1 |
| Electronics | 7 |
| High frequency electronics | 1 |
| Information technology | 11 |
| Makarov | 5 |
| Mass media | 12 |
| Mathematics | 1 |
| Meteorology | 1 |
| Military | 27 |
| Programming | 7 |
| Security systems | 2 |
| Technology | 18 |
| Telecommunications | 42 |