nucellus

常見例句

用作名詞 (n.)

• The nucellus is usually degraded and absorbed as the endosperm develops.
  珠心通常在胚乳發(fā)育時(shí)被分解和吸收。
• The region of an ovule that is opposite the micropyle,where the integuments and nucellus are joined.
  合點(diǎn)珠孔對(duì)面的胚珠內(nèi)結(jié)合珠被和珠心的一個(gè)區(qū)域。
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