精子发生的

Spermatogenesis is a complex process of cell division and differentiation resulting in a series of molecular and morphological changes in male germ cells.

精子发生是一个多阶段，多步骤持续的细胞分裂和分化过程，它受到性染色体和常染色体上一系列基因的调控。

In the period of co-culture,morphological changes of the germ cells, such as differentiations from s...

这一方法的建立为山羊精子发生过程的研究和应用打下了基础。

Objective To explore the effects of hypoxia on the environment of spermatogenesis in rat.

目的 通过研究低氧对大鼠睾丸中部分生化指标的影响，探讨低氧对精子发生局部环境的影响。

This dissertation is divided into three parts. The first part is studies on calcium distribution changes during spermatogenesis, epididymal maturation, capacitation, acrosome reaction, oocyte maturation and egg fertilization using in situ precipitation by potassium antimonate and Ca〓 fluorescent probes at electron and light microscope levels. The main results are: 1 Ca〓 was probably involved in the condensing process of nucleoplasm during spermatogenesis.

本论文分为三个部分，第一部分主要是采用焦锑酸钾原位定钙法和Ca〓荧光染料在电镜和光镜水平对哺乳动物精子发生、附睾成熟、获能、顶体反应及卵母细胞成熟和卵受精过程中Ca〓的分布变化规律进行了系统的研究。

In order to elucidate the regulation of proteolysis during spermatogenesis and maturation, expression of tissue-type PA and PAI-1 in testis and the accessory organs of rat has been investigated.

为探讨精子发生及成熟过程中蛋白水解酶调节机制，我们以大鼠为模型对组织型PA和PAI-1在睾丸及附性器官中的表达作了初步研究。

Objective To study the correlation between AZF gene family and spermatogenic impairment.

目的 了解AZF基因与男性精子缺陷发生的关系。

Objective: To investigate the association of microdeletion on AZF gene with novel spermatogenic impairment.

摘 要：目的：研究AZF基因家族与男性精子发生缺陷的关系。

Male infertility is related to the incomplete pairing in break regions of rearranged autosomes.

重排染色体在断裂点处广泛的不配对，引起精子发生失败。3。

The association of XY-bivalent and the rearranged autosomes interfere with or affect, by their contact, X chromosome normal functions.

XY-二价体与重排染色体联合，干扰或影响X染色体的正常功能，从而干扰精子发生。2。

Yeah, maybe your little boyfriend's got mutant sperms, knocked you up twice.

也许你男朋友的精子发生了变异让你怀两胎。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。