actinostele

常见例句

• Actinostele A rype of protostele in which the xylem is star shaped and the phloem lies between the points of the star.
  星狀中柱：原生中柱的一種類型。木質部是星形的，靭皮部位於星形之間。
• the actinostele of root of the former was di-to octoarch, but the latter only di-to pentarch;
  石菖蒲根的內皮層細胞壁爲馬蹄形五麪加厚；
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