形成珠

It takes about 0.5 h for a pollen tube from germination to arrive at the micropyle. About 0.5 h after pollination, the pollen tube releases two sperms into one synergid. At 0.5-2.5 h after pollination, the egg cell fuses with one sperm to form a zygote. About 10.0 h after pollination, the division of the zygote begins. The duration of the zygote lasts about 2.5-10.0 h. However, one sperm nucleus fuses with two polar nuclei at 1.0-3.0 h after pollination, and 5.0 h after pollination the primary endosperm nucleus begins to divide.

水稻受精过程经历的时间表如下：授粉后，花粉在柱头萌发；花粉萌发至花粉管进入珠孔大约需要0.5小时；授粉后0.5小时左右，花粉管进入一个助细胞，释放精子；授粉后0.5-2.5小时，精卵融合形成合子；授粉后约10.0小时，合子第1次分裂，合子期为授粉后2.5-10.0小时；授粉后1.0-3.0小时，精核与两极核融合；授粉后约5.0小时，初生胚乳核分裂。

The archegonial initials could be distinguished from the perip heral cells at the micropyle end of the female gametophyte before the completion of the wall formation where the cell wall had reached the center of the gametop h yte.

雌配子体中游离核之间细胞壁还未完全形成时，在其近珠孔端表面可看到颈卵器母细胞发生。

The immunohistochemical study showed that haptoglobin protein was expressed in the whole layers of epidermal keratinocytes in the lesions of CA at a high level and stronger staining was seen in the stratum basale and stratum spinosum.

尖锐湿疣皮损中结合珠蛋白可能通过抑制朗格汉斯细胞的功能成熟和抑制角质形成细胞的免疫活性参与尖锐湿疣的局部免疫逃逸。

Ovule development began in August, and rectangle megasporocyte began to occur in December, and linear tetrads of megaspores were formed in meiosis. In most occasions, only the chalazal megaspore was functional.

云南红豆杉胚珠从8月开始发生，大孢子母细胞12月开始发生，呈方形，减数分裂后形成4个&一&字形大孢子，在大多数情况下，只有靠合点端的大孢子发育为功能大孢子。

Ovary 3-5-loculed; ovules 2 to many per locule; style short, rod-shaped, stigma clavate, 5-grooved.

子房3-5室；胚珠2到多数每室；花柱短，杆形成，柱头棍棒状，具凹槽。

Fruit drupaceous, of separating mericarps or ± completely syncarpous, drying brown to black or rarely pale gray-brown when ripe; abortive carpels, if any, persistent; outer pericarp ± fleshy; endocarp bony next to locule, otherwise woody, in mericarps developed from 2-ovuled carpels forming a median longitudinal partial partition within locule.

果核果状，有分离的分果瓣或者多少完全的合心皮，成熟后变干，棕色或黑色，很少灰棕色；败育心皮，如果有的话，宿存；外部果皮多少肉质；内果皮骨质或木质，在分果瓣里内果皮由2胚珠的心皮在每室内形成中间的分隔。

Bead area teachs door of town Ministry of Education and sea the comrade says related the branch, the personalized advantage of Wu of kimono of the open sex that the original intention that establishs school of the parent on the net wants to develop website sth resembling a net adequately to be provided alone namely, autonomy, creativity, quick sex, groom with the parent cut a point as what community teachs, conformity whole town teachs resource high gradely, establish the educational pattern with a community, school, Trinitarian family through network compose, form the big education environment of harmonious development, harmonious to strengthening construction of minor thought morality, compose to build family and advance community education to have very active sense.

市教育部门和海珠区教育部门相关同志介绍说，创建网上家长学校的初衷就是要充分发挥信息网络独具的开放性、自主性、创造性、快捷性和服务的个性化优势，以家长培训作为社区教育的切入点，整合全市优质的教育资源，通过网络构建起社区、学校、家庭三位一体的教育模式，形成和谐发展的大教育环境，对加强未成年人思想道德建设、构建和谐家庭和推进社区教育都具有非常积极的意义。

Along with horary of change, the solar eclipse is also continuing to carry on.

&贝利珠&是月球即将完全遮住太阳时，月球轮廓边缘的环形山缺口透过的阳光形成的。

The test results show that the contact fatigued microstructure characters mainly the reduction of pearlitic interlamellar spacing, the formation of different type of substructures as well as the deformation and fracture of cementitic lamellar in pearlite.

结果表明，PD3钢轨钢接触疲劳变形组织的主要特征是：珠光体片层间距的减小；不同类型亚结构的形成；渗碳体的变形与断裂。

This cancer is well- differentiated, as evidenced by keratin pearls.

这是高分化鳞状细胞癌，已经形成了明显的角化珠。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。