精子的

We hypothesize that Zfp474 functions as a germ cell specific transcription factor that plays important roles in spermatid differentiation and oocyte development.

结果提示：Zfp474基因对精子发生和卵母细胞的发育可能起重要作用。

Fig.7 After the Sperm formed,it leaves the cytoplasmic massof spermatid 8300

图7。精子形成后与胞质间桥脱离的纵断面，8300

Results The diagnostic correspondent rate of obstructive and nonobstructive azoospermia by seminal spermatogenic cells examination was 85%, 95.1% respectively. The spermatogenic arrest at spermatid level, spermatocyte level and spermatogonium level or sertoli cells only were 14, 21 and 6 cases respectively.

结果 精液生精细胞学检查对梗阻性和非梗阻性无精症分型诊断的符合率分别为85%、95.1%。41例非梗阻性无精症中，生精阻滞阶段在精子细胞、精母细胞、精原细胞分别为14例2、1例和6例。

These results suggest that KyoT plays an important role in the development of testis and spermatogenesis.

上述结果提示KyoT在睾丸发育和精子成熟过程中发挥着重要的作用。

Objective To investigate the receptor mechanism of epidermal growth factor on spermatogenesis.

目的 探讨表皮生长因子受体在精子发生过程的作用机制。

Objective To identify genes involved in spermatogenesis and/or testicular development.

目的筛选与精子发生和睾丸发育相关的基因。

These are the main characteristics of spermatogenesis in P.monodon.

这是斑节对虾精子发生的主要特征。

Objectives: To study the cytogenetic cause related to spermatogenesis failure.

目的： 探讨与精子发生障碍相关的细胞遗传学原因。

It indicated that ethanol could damage spermatogenesis in mice.

说明乙醇对小鼠的精子生成有一定损害作用。

Mammalian spermatogenesis is an important research subject in reproductive biology.

哺乳动物精子发生过程是生殖生物学的重要研究课题之一。

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。