primary_structure_of_stem_有道手机词典

1.The primary structure of stem consists of epidermis, cortex and vascular cylinder too.
茎的解剖结构也由表皮、皮层和维管柱组成。
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2.The vascular bundles of the primary structure in stem are ring arranged, and the node is unilacunar and 3-traced, which is from three vascular bundles or one vascular bundle.
茎的初生结构中多个维管束排列成环状，节部为单隙三迹，叶迹分别来自于3条维管束或同一条维管束。
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3.Describe the difference of primary structure between root and stem.
简述根与茎初生结构的区别？
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