They are located in tissues ( the apical meristems ) at the growing points of roots and stems.
它们位于根和茎的生长点组织 ( 顶端分生组织 ) 中.
辞典例句
Recently, living free radical polymerization is one of the fastest growing points in polymer chemistry.
近几年来, 活性自由基聚合已成为高分子研究领域中最热点的部分之一.
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