 |
| reference frequencies: 29 phrases in 11 subjects |
| Astronautics | 3 |
| Automated equipment | 4 |
| Electrical engineering | 1 |
| General | 1 |
| Makarov | 6 |
| Microelectronics | 1 |
| Military | 1 |
| Programming | 1 |
| Quantum electronics | 1 |
| Technology | 9 |
| Telecommunications | 1 |
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