проблемами окружающей среды : 150 phrases in 17 subjects |
Astronautics | 3 |
Ecology | 30 |
Economy | 4 |
Energy industry | 60 |
Environment | 2 |
General | 5 |
Makarov | 10 |
Mass media | 1 |
Military | 6 |
Name of organization | 2 |
NATO | 1 |
Psychology | 1 |
Sakhalin | 1 |
Technology | 3 |
United Nations | 17 |
United States | 1 |
Water supply | 3 |