颈卵器的

When the gametes are readily distinguished as male or female, other therms may be used such as ANTHERIDIUM, ARCHIEGONUM, or OOGONIUM.

配子很快地分化为雌性或雄性以后，其他的细胞会形成如精子囊，颈卵器，卵囊等器官。

In this species, the first division of zygote produces two equal hemispheric cells by the first partition wall at the right angles to the axis of the archegonium.

合子的第一次分裂面垂直于颈卵器的长轴，产生两个相等的子细胞，靠近颈卵器颈部的营养器官原始细胞和远离颈部的基足原始细胞。

Venter The swollen base of an archegonium that contains the egg cell.

颈卵器腹部：颈卵器内含有卵细胞而向外膨大的基部。

The two neck cells of the archegonium divided to fo rm four neck cells before fertilization, this division happened prior to the div ision of the central cell, but at times they divided synchronously.

颈卵器的2个颈细胞在受精前进行一次斜向分裂形成4个颈细胞，此分裂一般早于中央细胞的分裂，偶尔也可见颈细胞和中央细胞同时分裂。

The presence of the calyptra is necessary for the proper development of the capsule in mosses and the embryo in ferns.

蒴帽：覆盖在苔藓植物孢子体顶部的膜状物，为颈卵器的颈部和部分腹部的残余部分，葫芦藓，大金发藓的蒴帽，覆盖在孢蒴上，颇为显著。

Great structural and morphological changes in the neck cell and the central cell took place during t he archegonial development.

在颈卵器的发育过程中，颈细胞和中央细胞的形态及结构都发生了较大的变化。

A sheathlike outgrowth of tissue in bryophytes protecting the archegonia or antheridia in certain liverworts.

总苞：1 是一种由被子植物花序下方的环状苞叶组成的保护结构。2 是苔藓植物外方具有的鞘状结构，在某些苔类中用来保护颈卵器或精子器。

In organisms showing sexuality, the gametes are of two types: male and female. They may be produced in special organs (e.g. carpel and anther in angiosperms, archegonia and antheridia in lower plants and some algae). The gametes may be derived from the same parent AUTOGAMY0 or from two different parents

在显示性别差异的器官中，配子体分两种：雄配子与雌配子，二者可能在特殊器官中产生（例如：被子植物的心皮或其它结构、低等植物及某些藻类的颈卵器和精子器）配子可以来自同一亲本或由两个不同亲本分别产生。

Moreover, the extremely slow development of gametophyte and time interval between the appearance of antheridia and archegonia resulting from the inherent physiochemical property of red soil make it impossible to fertilize and generate sporophyte.

此外，红壤固有的理化性质导致扇蕨配子体发育极其缓慢、精子器和颈卵器发生的时间间隔过长使其不能受精产生于包子体。

The initiati on and development of archegonia in Gingko,compared with those of cycads, w ere liked to be more primitive at the evolutional level.

银杏雌配子体及颈卵器的发生与发育，和苏铁类植物比较，在演化程度上可能更为原始。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。