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周木维管束
释义
周木维管束
Encyclopedia
理学
〔植物形态与结构〕
释
amphivasal vascular bundle
周木维管束
韧皮部位于中间,木质部围绕着韧皮部,无形成层的维管束。如朱蕉的茎、一些双子叶植物(如大黄、酸模和秋海棠)的髓维管束,以及天南星科、百合科、灯心草科和莎草科等单子叶植物的维管束。
Biology
amphivasal vascular bundle
周木维管束
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yuefu poetry style
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