查询词典 sperm cell

It has foundβ1,4-GalTⅠas a recognition molecule participated in the adhesion and spreading of cell, recognition of sperm-ovum, growth of nerve neurite, the formation of tissue and tumor metabasis as an adhesive molecule. Embryo implantation is similar to tumor metabasis and invasion.

细胞表面的β1，4-GalTⅠ作为一种黏附分子，参与细胞黏附、铺展、精卵识别、神经轴突生长、组织形成和肿瘤转移，而胚胎着床与肿瘤转移、侵袭过程非常相似。

The results show that, with the maturity of the gonad, the undifferentiated germ cell divided and differentiated to smaller oogonium or spermatogonia, and the oogonium or spermatogonia transformed to oocyte and sperm undergoing a series of maturation process.

摘 要 通过观察栉江珧的未分化生殖细胞，精原细胞和卵原细胞，精母细胞和卵母细胞，精子和卵子的形态结构与分布状况及核仁在卵成熟过程中的变化，对栉江珧生殖细胞发生及成熟过程的有关问题进行了探讨。

5The ovum develops only in the female, and the sperm cell develops only in the male.

卵细胞仅在女性体内产生，而精子细胞则仅在男性体内制造。

Renee Reijo Pera, a biologist at Stanford's Institute for Stem Cell Biology and Regenerative Medicine, points out that earlier attempts to create offspring with sperm from embryonic stem cells resulted in short-lived mouse pups that were either giants or midgets.

斯坦福干细胞生物与再生医学研究所的生物学家雷妮·雷霍·派拉指出，以前曾尝试用胚胎干细胞培育的精子来繁殖后代，结果所产生的幼鼠寿命短暂，而且体形不是特大就是特小。

Objective To explore effects of dibutyl Phthalate on the microkemel and sperm cell abnomalities in mice.

目的 了解邻苯二甲酸二丁酯对微核试验和精子畸形试验的影响。

A miniature, fully formed individual believed by adherents of the early biological theory of preformation to be present in the sperm cell .

雏型人一个微型的，充分成形的个体，早期生物理论预说的拥护者认为它存在于精子细胞中

A m in iature,fully formed in dividual believed by adherents of the early biological theory of preformation to be present in the sperm cell.

雏型人一个微型的，充分成形的个体，早期生物理论预说的拥护者认为它存在于精子细胞中

Development of mature sperm from the testes of normal seminiferous tubules, by a special cell - spermatogonia after splitting from the development.

成熟的精子来自发育正常的睾丸曲细精管，由一种特殊细胞——精原细胞几经分裂发育而来。

Objective To analyse different pathology of seminiferous tubule and sex hormone levels in order todiscuss whether they can provide reference for acquiring sperm or spermatogenic cell.

目的 分析唯支持细胞综合征不育患者曲细精管的不同病理改变及其血清性激素水平，探讨是否可以为睾丸活检取精子或生精细胞提供参考。

Sperm are intended to fertilize the female sex cell, or egg.

精子是要令到雌性生殖细胞能被受精。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。