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1.A visible growth of microorganisms, usually in a solid or semisolid nutrient medium.
一种可看得见的微生物的发育生长，通常在固体或半固体的营养媒质中收藏指正
2.A colloid in which the disperse phase has combined with the dispersion medium to produce a semisolid material, such as a jelly.
凝胶，胶冻一种胶体，其间分散物质与分散媒介相混合，以制造一种半固体状物质，例如果冻收藏指正
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