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Очистка загрязненной воды (9 h, feb 8, 2021 y – 17 h, feb 8, 2021 y)

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Изучение литературы по теме, поиск информации в сети Интернет, "мозговой штурм", выбор из предложенных наиболее оптимальных способов очистки воды

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ByЕлена Маласаева

8 Feb 2021

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2114

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9 h, feb 8, 2021 y

17 h, feb 8, 2021 y

~ 8 hours

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