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单词 胎座式
例句 DEFINITIVE EXAMPLES 权威例句〔free central placentation〕The arrangement of ovules on a central column that is not connected to the ovary wall by partitions, as in the ovaries of the carnation and primrose.分离中央胎座式:(如在康乃馨和报春花的子房里的)胚珠长在不经深裂片与室壁相连的中央柱上的排列方式美国传统〔placentation〕Botany Arrangement of placentas within the ovary.【植物学】 胎座式:子房内胎座的组成形状美国传统
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