精子的

Spermatozoa of Hemicentrotus pulcherrimus belong to the type of flagelloform, it has a coniform cell nucleus on its head, a small apical body on its forepart, four mitochondria, a couple of central granules, and a flagellum.

海胆精子与其他无脊椎动物的精子一样，属于鞭毛型，其头部包含一个圆锥形的细胞核，前端配有一个小的顶体，还包括4个线粒体、一对中心粒和一根鞭毛。

In multiple curvilinear regression analysis,when pH was fixed,there was significant linear correlation between α-glucosidase...

在多元曲线回归分析中发现，在固定pH的情况下，α-糖甘酶活性、总活性和前向精子活力呈线性正相关（分别P＜0.01，P＜0.001），说明附睾对于获得前向精子活力的重要性依然是肯定的。

There is increasing evidence that sperm DNA anomalies may lead to infertility,abortion,stillbirth,fathead and chromosomal diseases.

传统的精液检查往往不能找到精子DNA完整性异常患者的不育原因，因此对这部分患者进行精子DNA完整性检查具有更重要的意义。

Since the occurrence of deformed spermatids is one of the common abnormalities leading to malfunctional sperm, identification of RIM-BP3 might provide insight into the molecular cue underlying causes of male infertility in humans.

精子细胞形态异常是导致精子功能异常的原因之一，因此，RIM-BP3的发现为研究雄性不育的机制提供了线索。

In this study, the fine structures of chorion, micropyle, sperm entry site and plasma surface of its eggs were observed by SEM and TEM.

用扫描和透射电子显微镜观察了天然三倍体萍乡肉红鲫成熟卵子卵壳、受精孔、精子进入区以及卵子质膜表面的细微结构，观察了两种不同交配组合：萍乡肉红鲫萍乡肉红鲫与萍乡肉红鲫♀兴国红鲤♂的受精早期精子入卵的时序。

The price of using DHA as plasma membrane is very high.

同时，DHA也是精子所必需的，DHA水平低的精子连动都难，会动的受精能力也非常差。

Spermatogenesis is the name given to the process that occurs in the seminiferous tubules, which produces sperm. This process goes on all the time from the onset of puberty, in fertile males.

精子发生的名称是考虑到过程，是发生在曲细精管，产生精子，这个过程继续下去，所有的时间从一开始就青春期，在肥沃的男性。

Uu infection may reduce the sperm membrane integrity and sperm nucleus DNA maturity.

Uu感染能够降低精子膜的完整性以及精子核DNA的完整性，这可能是Uu致男性不育的又一因素。

Some proteins change their affinity to the given DNA fragment depending on spermatogenesis. It suggests that the NM-L-IF is the most important in the condensation and remodeling of the sperm nucleus and in the morphogenesis of spermatids.

精子发生中NM-L-IF的形态结构、蛋白组成及与DNA的相互作用发生显著变化，这可能与精子细胞核的浓缩变形以及形态发生密切相关。

The result show: The strong positive reaction on the plasma membrane of type Aspermatogonia and the head of maturing sperm, and a lesser positive reaction on the plasma membrane round spermatid.

结果表明：(1)在A型精原细胞的质膜和成熟的精子头部有强阳性反应，早期精子细胞质膜有较强的阳性反应。

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。