颈卵器

汉英

网络释义

例句

释义:
全部全部,archegoniumarchegonium,corpusculumcorpusculum,archegoniaarchegonia,archegonearchegone,archegonial chamberarchegonial chamber
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1.
Many forest tree species have multiple archegonia which , after fertilization produce a number of proembryos .
许多林木树种都有颈卵器，受精以后便产生许多原胚。
2.
In gymnosperms , the egg into the neck with only one of the two sperm and egg fusion.
在裸子植物中，进入颈卵器的两个精子只有一个与卵融合。
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3.
In the neck for eggs produced in only one egg, sperm is produced in many long, curly and two of the sperm flagellum .
在颈卵器中只产生一个卵，而在精子器中产生许多长形卷曲而具二根鞭毛的精子。
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4.
A similar section through the female plant reveals several bottle- shape archegonia , the female reproductory organs .
通过雌株末梢的纵切面所现出的几个瓶状的颈卵器，这就是雌性生殖器官。
5.
Most gymnosperms retain archegonia except for the most advanced genera Gnetum and Welwitschia.
除了买麻藤属和百岁兰属以外大多数裸子植物还保留有颈卵器。
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6.
Archegonial neck usually inclines or curves towards the base of the prothallus at maturity.
颈卵器成熟后，颈部常向原叶体基部倾斜或弯曲。
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7.
Early archegonial development is already evident two weeks after pollination .
颈卵器的早期发育在授粉后两周内就业已明显。
8.
(of mosses) having the archegonia at the top of the stem.
（苔藓）主干顶端有颈卵器。
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9.
The jacket cells are derived from cells surrounding the archegonial initials.
银杏套细胞起源于近雌配子体表面的颈卵器母细胞周围细胞。
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10.
Gymnosperms , the majority still retain the structure neck eggs, eggs in egg-neck in the formation.
裸子植物中的大多数仍保留颈卵器的结构，卵在颈卵器内形成。
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