 |
| |||
| surveillance area; observation sector; observing sector; observation zone; belt (алешаBG) | |||
| zone of observation | |||
| swath of coverage | |||
| полоса наблюдения: 19 phrases in 6 subjects |
| Mass media | 1 |
| Military | 9 |
| Navigation | 1 |
| Physics | 1 |
| Quantum electronics | 5 |
| Technology | 2 |