精子的

We detected the frozen-thawed sperm of 36 Simmental,23 Charolais and 12 Limousin,the results showed that the frozen-thawed sperm of these three breeds could penetrate the zona-free ova of hamster,and formed male pronucleuses.

对36头西门塔尔、23头夏洛来和12头利木赞牛冷冻精子的实验结果表明：三个品种的牛冻精均能穿入去透明带仓鼠卵，并形成发育良好的雄原核。

The Newcastle study, by Dr Corry Gellatly, is strong evidence that there is a genetic component.

杰拉特医生说，可能是遗传的差别影响男人产生的带X和Y染色体精子的相对数量。

"A contraceptive device consisting of a thin flexible disk, usually made of rubber, that is designed to cover the uterine cervix to prevent the entry of sperm during sexual intercourse."

"通常由薄橡皮膜制成的套在子宫颈上的帽，以避免性交过程中精子的进入。"

A contraceptive device consisting of a thin flexible disk, usually made of rubber, that is designed to cover the uterine cervix to prevent the entry of sperm during sexual intercourse.

子宫帽避孕套通常由薄橡皮膜制成的套在子宫颈上的帽，以避免性交过程中精子的进入

In one study, more than 80% of the samples from infertile men had reduced sperm motility.

一项已发表的研究表明，约80%不育男性精子的运动能力都呈现不同程度的下降。

They announced in the proceedings of the National Academy of Sciences that they had removed sperm - producing cells from mice and exposed them to a virus that shuttled in a new gene.

他们在《全国科学院学报》上宣布，他们从老鼠身上取出产生精子的细胞，将它们接触存在于一种新基因里的病毒。

In zebrafish, FSHR is expressed in the kidney and liver, in addition to the gonads.

在男性，FSHR特异表达于睾丸的支持细胞，通过促进精子的形成而调控生精功能。

The ultrasturcture of the spermatozoon of Hyla chinensis was studied in this paper and its significance on the phylogenesis was roughly inquired.

钟秀容 ，尤永隆，林丹军研究了中国雨蛙精子的超微结构，并初步探讨其在系统发育上的意义。

Objective To investigate the reproductive toxicity of 3,4-dichloroaniline (3,4-DCA), the effect of 3,4-dichloroanilines on sperms of Wistar rats was studied.

目的 研究3，4-二氯苯胺(3，4-DCA)对雄性大鼠精子的影响，以探讨3，4-DCA对雄性大鼠的生殖毒性作用。

Never mind, drinking is a spermicide, but you have children in the drinking, I do not look at the issue

没事的，喝酒是杀精子的，可是你们在喝了酒又有孩子了，我看问题不大

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。