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| environmental protection technology | |||
| eco-technology | |||
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| environmental technologies (transland) | |||
| природоохранная технология: 18 phrases in 9 subjects |
| Astronautics | 1 |
| Ecology | 1 |
| Energy industry | 6 |
| Environment | 1 |
| European Bank for Reconstruction and Development | 2 |
| European Union | 1 |
| Makarov | 1 |
| Technology | 1 |
| United Nations | 4 |