精子的

The long, narrow duct that conveys urine from the kidney to the urinary bladder or cloaca.

尿道大多数哺乳动物自上尿液从膀胱中排出体外的管道，雄性的精子可从中排出

"Certain animals (e.g., many reptile s and some birds, including ducks) have an accessory organ within the cloaca that is used to direct the sperm into the female's cloaca."

某些动物的泄殖腔内有一附属器官，用于把精子送入雌体泄殖腔内，这见于许多爬虫类和包括鸭在内的少数鸟类。

Alan Colman, CEO of ES Cell International Pte Ltd in Singapore, wonders whether they might deteriorate in quality over time, a characteristic of sperm cells.

新加坡 ES Cell International 私人有限公司首席执行官艾伦·科尔曼在想：它们的质量是否会随时间推移而下降？而这正是精子细胞的一个特点。

The changes of ATPase activity of the rats sperm were detected by chemical colorimetry.

男性在生育过程中的作用是提供具有受精能力的精子。

Seminal plasma is a mixture of secretions from the testis, epididymis and several male accessory glands, including the prostate, seminal vesicles and Cowper's gland.

精液是睾丸、附睾、前列腺、精囊腺和尿道旁腺分泌液的混合物，含有一些精子运动所必需的蛋白质。

Previous research suggests that men may have evolved tactics such as mate retention behaviors that reduce the risk of sperm competition and cuckoldry.

过去研究表明进化而来的男性配偶监控策略可以防止女性不贞，减少精子竞争失败的危险。

This can be costly if the woman's social partner loses the competition and, as a consequence, invests in offspring that are not genetically his own, a situation known as cuckoldry.

女性得到社会承认的性伙伴可能因精子竞争失败而损失惨重，因为女性私通可能引起男性投资于不携带自己基因的后代。

It even can be seen that the disomy rates of both two donors were higher than the diploidy rates, which may imply that more disomy occurred than disomes in meiosis process.

结论引物原位标记技术看起来是检测人类外周血淋巴细胞中期染色体和精子染色体数目异常的一项经济简便和快速可靠的高通量检测方法。

In rare cases, an egg or sperm cell may possess coding for just one skin color.

在这个罕见的例子中，卵子和精子正好带有一种肤色的基因密码。

In order to find a way to lessen DNA problems of sperm, Dr. David Greening, a gynecologist and endocrinologist from Australia, studied the effects of daily ejaculations on damage rates.

为了找到一种方法，以减少问题的精子DNA的博士大卫绿化，一个医生和内分泌来自澳大利亚，研究了影响日常ejaculations损伤率。

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。