site investigations : 19 phrases in 13 subjects |
Caspian | 2 |
Construction | 4 |
Ecology | 2 |
Electronics | 1 |
Geology | 1 |
Geophysics | 1 |
Makarov | 1 |
Military | 1 |
Natural resourses and wildlife conservation | 1 |
Nuclear and fusion power | 1 |
Security systems | 2 |
Water supply | 1 |
Weapons of mass destruction | 1 |