查询词典 sperm

After the nucleus of the sperm has united with the nucleus of the egg, the result of their union, the zygote, begins a process of internal division.

受精以后数小时内，也就是精子的细胞核与卵子的细胞核融合以后，所形成的这个受精卵开始内部的分裂过程。

Excessive intra-abdominal temperature is not conducive to sperm production, testicular malignant risk also increased significantly.

腹腔内过高的温度不利于精子的产生，睾丸恶变风险也大大增加。

When male mated consecutively in a night, mating interval, duration for mating, each mounting, intromission and the last mount, and copulatory mass kept constant, suggesting that male possess a pattern of constant mating investment, which might result from intense sperm competition in this species.

雄兽连续交配时，交配间隔、交配持续时间、每次爬跨持续时间、总爬跨持续时间、最后一次爬跨持续时间、射精持续时间等行为参数以及交配栓的重量均保持不变。表明雄兽具有恒定的交配投资模式，这种模式可能起因于该物种雄性之间激烈的精子竞争。

Finally, doctors would irradiate the man's testes to destroy any remaining sperm-producing cells and reimplant the altered ones.

最后，医生通过照射他的睾丸杀死能产生精子的剩余细胞，并重新植入经过修补的细胞。

Irradiate'.'' the man's testes to destroy any remaining sperm-producing cells and reimplant the altered ones.

照射'。''他的睾丸杀死能产生精子的剩余细胞，并重新植入经过修补的细胞。

To evaluate the effect of anti-sperm antibody on Golden hamster vaginal irritative.

研究抗精子抗体的体外杀精效果及其对金黄地鼠阴道粘膜的刺激性，以初步评价该药作为外用避孕药应用的可能性。

In particular, it has remained unclear how oogamy arose from isogamy, a more simple form of sex in which ery similar reproductie cells take on different "mating types" but do not differentiate as distinct sperm and egg.

尤其是异配生殖如何由同配生殖转化而来，我们对此还懵懵懂懂。同配生殖是一种更为简单的结合形式，在此过程中，非常相似的生殖细胞不管三七二十一地就与不同的配子结合，都不分这些配子是"公"是"母"。

Nuclear changes in gynogenetic eggs of the scallop were examined under a fluorescence microscope during meiosis and fertilization, indicating that UV-irradiated sperm nucleus did not participate in the karyokinesis at anaphase of the first cleavage.

运用荧光显微镜观察探讨了栉孔扇贝雌核发育卵子在受精和成熟分裂过程中的核相变化，发现UV照射精核不参与核分裂，首次提供了栉孔扇贝雌核发育的细胞学证据。

A sperm whale has 10 more teeth than a killer whale.

4抹香鲸比虎鲸的牙齿多10颗。

Objective To study the relationship between the kinesis parameter and motility of sperm with computer-assisted semen analysis in infertile patients.

目的 探讨计算机辅助精液分析精子运动参数在评价男性不育患者精子活力中的价值。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐