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| диапазон частот | |||
| 频率范围频率范围: 30 phrases in 11 subjects |
| Antennas and waveguides | 1 |
| Automated equipment | 1 |
| Aviation | 1 |
| Electronics | 6 |
| General | 5 |
| Military | 1 |
| Oil and gas | 1 |
| Oil processing plants | 1 |
| Shipbuilding | 1 |
| Technology | 11 |
| Telecommunications | 1 |
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