产生精子的

Further investigation will potentially provide the practical technologies for the diagnosis of human acrosome reaction deficiency

孕酮具有促进人精子受透明带诱导顶体反应的作用；小鼠透明带溶解液具有诱导人精子产生顶体反应的效果并确定了mZPS诱导人精子顶体反应的量效关系，为建立人顶体反应缺陷症的实用诊断技术提供基础。

It is motile and is produced in an antheridium, except in certain gymnosperms (e.g.Cycas, Ginkgo) in which antherozoids develop from the generative cells of the pollen tube.

除了在一些由花粉管的生殖细胞产生配子的裸子植物中（铁树 Cycas，银杏 Ginkgo ），通常是由精子器产生的并且会游动。

They haven't created a master race because only a tiny number of women have wanted to impregnate themselves this way.

但是一个优等民族并没有因此而产生，因为需要借助精子库内的精子怀孕的育龄妇女毕竟是极少数。

The sperm originate in gonial cells in the walls of seminiferous tubules.

精子产生于输精管壁的性母细胞。

The male sex is the sex that produces the relatively cheap, small, and very mobile sperm cell.

雄性产生相对便宜，小，而且非常自由的精子。

It is concluded that the MSF is safe for long-term treatment and the mechanism of contraception is shown by its effect on spermatid differentiation in the testis, possibly mediated by the Sertoli cell factors.

本研究表明用番木瓜种子甲醇分馏物长期治疗是安全的，其避孕机制是通过对睾丸中精子细胞分化产生影响，可能由Sertoli细胞因素调节。

A caplike structure at the anterior end of a spermatozoon that produces enzymes aiding in egg penetration .

精子头粒蛋白一种在精子内前端的帽状结构，可产生帮助穿透卵子的

The development speed of gynogenetic embryos was later than that of the control group, and aneuploids were found in this study. The obvious improved survival of trochophore larvae with a peak at 40s UV exposure suggested the presence of a Hertwig effect in the gynogenesis of A. pectinata. When sperms were irradiated for 40s, the cleavage rate was relatively high (51.2%), the developmental rate of D-larvae became zero, and the rate of haploid reached the highest (36.8%).

经紫外线照射的精子受精后所产生的单倍体胚胎发育速度慢于正常受精所产生的二倍体胚胎，各照射组均出现非整倍体。40s照射组中卵裂率达到51.2%，D型幼虫发生率为0，单倍体率最高，达到36.8%，出现"Hertwig效应"。

In organisms showing sexuality, the gametes are of two types: male and female. They may be produced in special organs (e.g. carpel and anther in angiosperms, archegonia and antheridia in lower plants and some algae). The gametes may be derived from the same parent AUTOGAMY0 or from two different parents

在显示性别差异的器官中，配子体分两种：雄配子与雌配子，二者可能在特殊器官中产生（例如：被子植物的心皮或其它结构、低等植物及某些藻类的颈卵器和精子器）配子可以来自同一亲本或由两个不同亲本分别产生。

We have exposed that during the climax of intelligence, energy and constitution, the sperms and ovums had best qualities.

我们已经揭示了在人的智力、精力和体力生理高潮时，男性产生的精子和女性产生的卵子分别具有最佳状态的特质。

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。