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ПросмотрАктуальные научно-технические и экологические проблемы сохранения среды обитания по теме
Отображаемые элементы 1-20 из 42
тематика/ключевые слова |
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East-Belarusian province [1] |
Eastern Zangezur [1] |
ecological culture [1] |
ecological problems [1] |
ecological runoff [1] |
ecological state [1] |
ecology [33] |
ecology, combustible VER [1] |
economic activities [1] |
economic management [1] |
economy [2] |
ecosystem [1] |
ecotourism [1] |
education [6] |
education, examination by experts [1] |
efficiency [2] |
ejector [1] |
electret [1] |
electric power industry [1] |
electrocoagulation [1] |