| 释义 |
nu·cel·lus 英nuːˈseləs, njuː-美nuˈsɛləs, nju-AHDn›-sĕlʹəs, ny›-
基本英英例句
n.植珠心复数nucelli形容词nucellar名词复数nucelli
Noun:
central part of a plant ovule; contains the embryo sac
名词100%
用作名词Thenucellusis 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 andnucellusare joined.合点珠孔对面的胚珠内结合珠被和珠心的一个区域。 |