| |||
| sistema de observación desde estaciones terrestres | |||
|
ground-based system : 3 phrases in 3 subjects |
| Technology | 1 |
| Transport | 1 |
| United Nations | 1 |
| |||
| sistema de observación desde estaciones terrestres | |||
|
ground-based system : 3 phrases in 3 subjects |
| Technology | 1 |
| Transport | 1 |
| United Nations | 1 |