| 释义 |
embryo sac ˈembriəusæk 短语¹³¹⁶²⁰⁺³
基本例句
胚囊
The process of embryo sac formation and development in rice cultivar IR36 was studied by the modified GMA semi- thin serial sectioning technique.
利用改进的 GMA半薄连续切片技术对水稻品种IR36胚囊形成和发育进行了研究。 cnki
The development of embryo sac belongs to polygonum type.
东北龙胆的胚囊发育属于蓼型。 cnki
The differentiation of antipodal cells are earlier than that of wheat and rice, the speed of cell division is very quick. They occupied a large area in the embryo sac.
反足细胞的分化早于小麦和水稻，并分裂速度很快，它在胚囊中所占的面积也较大。 cnki
The mature embryo sac contains seven cells and the two polar nuclei fused before fertilization.
成熟胚囊具七细胞，两极核在受精前融合。 cnki
The mature embryo sac has seven cells.
成熟胚囊内具七个细胞。 cnki
The meiosis of a macrospore mother cell usually forms three linearly arranged cells, and thechalazal macrospore develops into a polygonal embryo sac.
通常大孢子母细胞减数分裂形成三个直线排列的细胞，合点端大孢子具功能，功能大孢子发育成蓼形胚囊。 cnki
In present work, the development of anther, formation of pollen grain and development of ovule and formation of embryo sac in Ramie were observed.
本工作对苧麻花药的发育和花粉粒的形成、胚珠的发育和胚囊的形成进行了观察。 cnki
Malformation embryo sac, twin- ovule and twin- embryo sac in an ovary were seen with paraffin slic.
石蜡切片观察还发现胚囊畸形，出现双胚珠和双胚囊。 fabiao
Megaspore tetrad is linear. the chalazal megaspore develops into an embryo sac of polygonum type. Hypostase and special integument tapetum exist in the ovule.
大胞子四分体线形排列，合点端大孢子为功能大孢子，胚囊发育类型为蓼型，具有特化的珠被绒毡层和承珠盘。 fabiao
Stagnation and abortion of the embryo sac development are closely related to the normal supply of food to the embryo sac from the ovary wall.
胚囊发育的停滞与败育跟子房壁组织中淀粉的积累及对胚囊营养的正常供应有密切关系。 cnki
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。 cnki
Of most two kinds of variant embryo sac, referred as poly egg apparatus embryo sac53.3% and double set of embryo sac6.3% were found.
其中主要的变异有两类，即多卵卵器胚囊53.3% 和双套结构胚囊6.3% 。 cnki |