nucellus
n.
[植]珠心
英語(yǔ)翻譯 Noun:
-
central part of a plant ovule; contains the embryo sac
造句
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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