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Подготовительный этап (9 h, feb 8, 2021 y – 12 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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9 h, feb 8, 2021 y

12 h, feb 8, 2021 y

~ 3 hours

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