предотвращение загрязнения окружающей среды: 20 phrases in 12 subjects |
Ecology | 2 |
Electronics | 2 |
Energy industry | 4 |
Finances | 2 |
General | 1 |
Law | 2 |
Makarov | 2 |
Name of organization | 1 |
Oil / petroleum | 1 |
Oil and gas technology | 1 |
Transport | 1 |
United Nations | 1 |