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| sharp edge; steep edge | |||
| крутой фронт импульса: 20 phrases in 12 subjects |
| Astronautics | 1 |
| Automated equipment | 1 |
| Communications | 1 |
| Electrical engineering | 1 |
| Electricity | 1 |
| Electronics | 1 |
| Geophysics | 1 |
| Metrology | 3 |
| Quantum electronics | 1 |
| Shipbuilding | 1 |
| Technology | 7 |
| Telecommunications | 1 |