英语词汇embryo sac怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

短语

1
Megaspore tetrad is linear. The chalazal megaspore develops into an embryo sac of Polygonum type.
大孢子四分体为线形，合点端功能大孢子发育成为蓼型胚囊。
2
A mature embryo sac is composed of egg apparatuses (two synergids and one egg cell), central cells and three antipodal cells.
成熟胚囊包含卵器(由两个助细胞、一个卵细胞组成)，中央细胞及三个反足细胞。
3
TyPes of endosPerm and embryo sac and structural feature of susPensor were also discussed.
还对沙打旺胚柄的构造特点，胚乳和胚囊的类型等进行了讨论。

单词	embryo sac
释义	embryo sac 简明释义 [植] 胚囊网络释义 1 ?胚乳囊胚乳囊短语 1 embryo sac 植胚囊 2 embryo sac mother cell 大孢子母细胞 ; 植胚囊母细胞 3 embryo sac haustorium 胚囊吸器双语例句 1 Megaspore tetrad is linear. The chalazal megaspore develops into an embryo sac of Polygonum type. 大孢子四分体为线形，合点端功能大孢子发育成为蓼型胚囊。 2 A mature embryo sac is composed of egg apparatuses (two synergids and one egg cell), central cells and three antipodal cells. 成熟胚囊包含卵器(由两个助细胞、一个卵细胞组成)，中央细胞及三个反足细胞。 3 TyPes of endosPerm and embryo sac and structural feature of susPensor were also discussed. 还对沙打旺胚柄的构造特点，胚乳和胚囊的类型等进行了讨论。
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