nucelli

常见例句

用作名词 (n.)

• The nucellus is usually degraded and absorbed as the endosperm develops.
  珠心通常在胚乳发育时被分解和吸收。
• The region of an ovule that is opposite the micropyle,where the integuments and nucellus are joined.
  合点珠孔对面的胚珠内结合珠被和珠心的一个区域。
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