以下为句子列表：
英文: Roots also differ from roots in the arrangement of xylem and phloem, having a solid central strand of vascular tissue rather than a hollow cylinder of conducting tissue.
中文: 根和茎不同，它无叶绿素，没有芽和叶，木质部和韧皮部的排列顺序也不同，其内部为实心的维管组织，而茎的内部为中空的圆柱形输导组织。
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英文: The arrangement of vascular tissue (the vascular system) in the stem is very varied, giving a number of different types of STELE.
中文: 茎中维管组织的排列方式多种多样，由此产生多种类型的中柱。
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英文: The innermost layer of the cortex that forms a sheath around the vascular tissue of roots and some stems.
中文: 内皮层皮层的最内层，在根、茎的导管组织周围形成一道叶鞘（茎衣）
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英文: This differentiates into the vascular tissue of the developing leaf.
中文: 这与发育中叶的维管组织不同。
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