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n.大孢子；（种子植物的）胚囊
1、acromegaly score───肢端肥大症评分
2、acromegaly cat───肢端肥大症猫
3、omega seamaster───欧米茄塞马斯特
4、patmos omega───欧米茄patemos
5、aganglionic megacolon───[医]无神经节性巨结肠：同congenital megacolon
6、megaera solo───梅盖拉独奏
7、acromegaly syndrome───肢端肥大症
8、caius the mega monarch───凯乌斯是超级君主
9、mega calcium───巨钙
10、pureform omegas───纯欧米茄，
1、In the gymnosperms the megaspore gives rise to a cell that is termed the embryo sac because of its similarity to the angiosperm structure.───在裸子植物中，大孢子也产生一个细胞，因为它类似于被子植物的胚囊细胞，故也可以称之为胚囊。
2、Genesis of megaspore and development of embryo sac in Carica papaya L .───番木瓜的大孢子发生与胚囊发育。
3、The megaspore mother cell meiosis to form a linear megaspore tetrad.───大孢子母细胞减数FenLie产生直线形大孢子四分体。
4、synchronous development of megaspore and pollen chamber.───孢子发育和贮粉室发生的同步性。
5、In theterosporous species, a distinction is usually made between megaspore mother cells and microspore mother cells.───在异型孢子体种类中，可区分为大孢子母细胞和小孢子母细胞。
6、Of the four products of a megaspore mother cell, three usually abort.───在大孢子母细胞FenLie产生的四个孢子中，三个会解体消失。
7、Arrangement of megaspore is linear shaped, the megaspore of chalazal end is functional megaspore.───孢子排列为直线型，合点端大孢子为功能大孢子。
8、Megaspore tetrad is linear. The chalazal megaspore develops into an embryo sac of Polygonum type.───孢子四分体为线形，合点端功能大孢子发育成为蓼型胚囊。
1、Function megaspore is in the chalaza and the monosporic embryo sac is chenopodiad type.
2、A single archesporium differentiates immediately below the nucellar epidermis, it functions directly as the megaspore mother cell.
3、The megaspore archesporium splits circumference, it circumferential edge cell and a sporogenous cell.
4、Megaspore tetrad is linear. The chalazal megaspore develops into an embryo sac of Polygonum type.
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6、The functional megaspore in the linear tetrad is the one endsac is the polygonum type.
7、In dandelion ( Taraxacum ), for example, the chromosomes of the megaspore mother cell remain in one cell after the first meiotic division, forming a restitution nucleus.
8、Development of megaspore and formation of embryo sac:The ovule has a layer of parietal cells at the sporogenous stage.
9、So it defined as crassinucellate. The megaspore mother cell divides transversally to form a linear megaspore tetrad. The megaspore at the chalazal end develops into the embryo sac mother cell.