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улучшение окружающей среды : 38 phrases in 15 subjects |
Aviation medicine | 1 |
Business | 1 |
Diplomacy | 1 |
Ecology | 13 |
Energy industry | 2 |
Environment | 1 |
European Bank for Reconstruction and Development | 7 |
General | 4 |
Hydraulic engineering | 1 |
Makarov | 1 |
Medical | 1 |
Oil / petroleum | 1 |
Technology | 1 |
Water supply | 2 |
Wood processing | 1 |