母细胞

The spermatogenesis includes five stages: spermatogonium、primary spermatocyte、secondary spermaticyte、spermatid and spermatozoon.

雄体的生殖细胞发生经历精原细胞、初级精母细胞、次级精母细胞、精子细胞和成熟精子五个时期。

The spermatogenesis of Solen grandis included five stages: spermatogonium, spermatocyteⅠ, spermatocyteⅡ, spermatid and spermatozoon.

大竹蛏精子发生历经精原细胞、初级精母细胞、次级精母细胞、精细胞和成熟精子5个阶段。

The results indicate that:(1) Using SUZI method can improve the fertilization rates of denuded oocytessignificantly. This result suggests zona pellucida may be one of the reasons that makedenude oocytes matured in vitro have a clearly deficiency on fertilization in vitro.

结果表明：(1)利用精子带下注射技术可以极显著的提高去除卵丘细胞的卵母细胞的受精率，表明透明带结构的改变是去除卵丘细胞的卵母细胞存在受精障碍的重要原因之一。

The reproductive development process of birch was described as follows: Male inflorescences extended from apical bud in early June. In later June, stamen primodium was differentiated in the bract of male inflorescence and the differentiation of bract was generated in female inflorescence. During July, anther layers and archesporial cell were differentiated in anther, then archesporial cell developed into mother microspore cell. Pistil primodium came into being at the same time. In early part of August the meiosis of mother microspore cell started. In later August, mono-nucleus microspore was formed. After September, both male inflorescence and female inflorescence were dormant.

白桦的生殖生长发育过程如下：6月初，雄花序从顶芽中生长出来。6月中下旬，雄花序苞片上分化出雄蕊原基，雌花序分化出苞片。7月，雄花花药分化出花药壁和孢原细胞，孢原细胞演化为小孢子母细胞，雌花序苞腋处分化出雌蕊原基；8月中上旬，小孢子母细胞减数分裂，8月下旬形成单核小孢子；9月后雄花序以单核小孢子状念越冬，雌花序以雌蕊原基状念越冬。

It also indicates that the expression of WT1 is regulated strictly in time and space, and the aberrant expression of WT1 may result in retarded differentiation of blastemal cell leading NR or nephroblastoma.

提示在散发性肾母细胞瘤发生中除WT1突变外，WT1表达延迟可能是其中起重要作用的机制之一；WT1基因与肾母细胞瘤的组织分化有关，可能诱导胚基细胞向上皮细胞方向分化。

The rate of Flow cytometry to analyse retinoic acid haploid is 19.3%.The sperm-like cells achieved could activate bovine oocytes by sperm injection, and the development rate of blastosphere was 20.36%. Conclusions SSCs of newly -born mice can be induced and differentiated into sperm-like cells and are also capable of activating oocytes.

本实验通过体外诱导新生小鼠SSCs分化为精子样细胞，探讨不同诱导方法的诱导效率；采用显微注射法将精子样细胞注射到卵母细胞和去核卵母细胞，探讨其体外重构胚的发育能力，为SSCs体外分化研究打下基础。

After 72 h induced by Progesterone and Glucocorticoid as well as Insuline,biological activities of IL-2 were assayed with morphological docimasia method.

结果显示，转染细胞均可表达IL-2，且所表达的IL-2有促进T淋巴细胞转化和淋巴母细胞成熟的活性；转染pcDNA3 OVP—IL2的输卵管上皮细胞表达产物在1：256稀释水平下仍具有促进T淋巴细胞转化和淋巴母细胞成熟的活性。

After 72h induced by Progesterone and Glucocorticoid as well as Insuline, biological activities of IL-2 were assayed with morphological docimasia method. The results showed that the plasmids of pcDNA3-QVP-IL2 and pcDNA3-IL2 could express IL-2, and the IL-2 could augment T cell proliferation.

结果显示，转染细胞均可表达IL-2，且所表达的IL-2有促进T淋巴细胞转化和淋巴母细胞成熟的活性；转染pcDNA3-OVP-IL2的输卵管上皮细胞表达产物在1：256稀释水平下仍具有促进T淋巴细胞转化和淋巴母细胞成熟的活性。

This is a retrospective analysis of 194 patients with primary malignant brain tumor, who registered between January 1, 1970 and December 31, 1979 in cancer registration, Cancer Therapy Center, Veterans General Hospital, Taipei, Taiwan, R.O.C. There were 36 cases of glioblastoma multiforme, 86 cases of malignant astrocytoma (grade Ⅲ and a few grade Ⅱ), 22 of medulloblastoma, 12 of oligodendroglioma, 11 of ependymoma or ependymoblastoma and 27 cases of other types. There were 141 male cases with ages ranging from ito 81 years with a mean of 33.3±19.3 and median of 34 years.

自1970年1月至1979年12月台北荣民总医院癌病治疗中心癌病登记组共登记了194例原发恶性脑瘤其中多形神经胶母细胞瘤有36例，第二级及第三级星细胞瘤有86例，神经管胚细胞瘤有22例，间胶质母细胞瘤有12例，室管膜瘤或室管膜胚细胞瘤(ependy-moblastoma)有11例，其他有27例。

In the PbⅠ stage oocyte, perivitelline enlarged further, the cumulus cells expanded and the cell junctions disappeared. On the membrane of oocyte near the first polar body, a no microvillus area was observed, where probobly was the position for the second polar body extruding.

在PbⅠ阶段的卵母细胞内，卵周隙进一步扩大，卵丘细胞扩散，无细胞间连接存在，卵母细胞表面靠近第一极体的部位存在无微绒毛的区域，可能是第二极体释放的部位。

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。