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1.The Nostocaceae are a type of algae that can be found in freshwater environments.
蓝绿藻类是一种可以在淡水环境中发现的藻类。
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2.Researchers have discovered new species of Nostocaceae in the Arctic Ocean.
研究人员在北极海域发现了新的蓝绿藻类物种。
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3.The study of Nostocaceae is important for understanding the ecology of freshwater ecosystems.
研究蓝绿藻类对于理解淡水生态系统的生态学非常重要。