詞組搭配

nucellus embryo珠心胚

degeneration of nucellus珠心退化

degenerated nucellus which珠心組織

雙語(yǔ)例句

1.The nucellus is usually degraded and absorbed as the endosperm develops.

漢珠心通常在胚乳發(fā)育時(shí)被分解和吸收。

2.The region of an ovule that is opposite the micropyle,where the integuments and nucellus are joined.

漢合點(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。

英英釋義

1. central part of a plant ovule; contains the embryo sac