| |||
监控系统; 监视系统; 观察系统 | |||
观测系统 | |||
| |||
排列; 布置; 观测系统 |
система наблюдения: 60 phrases in 12 subjects |
Astronautics | 2 |
Aviation | 1 |
Ecology | 2 |
Electronics | 3 |
General | 27 |
Historical | 1 |
Name of organization | 4 |
Nautical | 1 |
Navy | 1 |
Seismology | 2 |
Technology | 6 |
United Nations | 10 |