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periphyton
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periphyton
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理学
周丛生物
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periphyton
周丛生物
生活在浸没于水中的各种基质表面上的有机体集合群。包括基质上生长的所有生物,有细菌、真菌、藻类、原生动物、轮虫、甲壳动物、线虫、寡毛类、软体动物,甚至鱼卵和幼鱼等。这些有机体往往被一层黏滑的、甚至毛茸茸的泥沙所覆盖。
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convex fuzzy set
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convexifiable topological space
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convexity
convexity coefficient
convexity condition
convexity constraint
convexity downward
convexity inequality
convexity limit
convexity modulus
convexity problem
convexity property
convexity radius
convexity theorem
convexity upward
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