麻豆精品在线久草熟女|色情一区二区三区|国产一级片国产特级片|亚州特级黄片在线免费观看|中文人妻少妇有码Av|日逼黄色毛片久久精品久久日|欧美黄色短片网站|无码在线资源黄色免费看视频|日韩无码1区2区3区|亚洲夜色在线五月天激情影院

單詞乎

perisperm

音標(biāo)['perispə:m]
perisperm是什么意思、perisperm怎么讀

perisperm漢語(yǔ)翻譯

【醫(yī)】 外胚乳

perisperm英語(yǔ)解釋

名詞 perisperm:

  1. the nutritive tissue outside the sac containing the embryo in some seeds

perisperm詳細(xì)解釋

per.i.sperm

n.Botany (名詞)【植物學(xué)】
The nutritive tissue that is derived from the nucleus and surrounds the embryo of the seed.
外胚乳:包在種子胚芽外,產(chǎn)生于細(xì)胞核的營(yíng)養(yǎng)性組織

0
糾錯(cuò)