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nucellus的英文翻譯是什么意思，詞典釋義與在線(xiàn)翻譯：
英英釋義
Noun:
-
central part of a plant ovule; contains the embryo sac
nucellus的用法和樣例：
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)珠孔對面的胚珠內結合珠被和珠心的一個(gè)區域。
