 |
| monitoring techniques: 10 phrases in 6 subjects |
| Astronautics | 5 |
| General | 1 |
| Geophysics | 1 |
| Makarov | 1 |
| Nuclear and fusion power | 1 |
| United Nations | 1 |
|
| monitoring techniques: 10 phrases in 6 subjects |
| Astronautics | 5 |
| General | 1 |
| Geophysics | 1 |
| Makarov | 1 |
| Nuclear and fusion power | 1 |
| United Nations | 1 |