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| положительный фронт тактового импульса (ssn) | |||
| leading pulse edge: 34 phrases in 12 subjects |
| Astronautics | 2 |
| Computers | 1 |
| Electrical engineering | 3 |
| Electronics | 6 |
| General | 1 |
| Mass media | 5 |
| Mathematics | 1 |
| Nuclear physics | 2 |
| Programming | 6 |
| Technology | 1 |
| Telecommunications | 2 |
| Радиоактивное излучение | 4 |