查询词典 sperm

Basketball as birth control: the sublimating trajectory of ball to hoop cartooned the urgent, intimate quest of sperm to ovum—and, so to speak, contracepted it.

用篮球来控制生育：球投向篮圈的轨迹漫画式地表现了精子射向卵细胞这一本能的急切的需求—从而避免了卵细胞受孕。

Under anaesthesia, the fallopian tubes may be cauterized or clamped in order to prevent sperm from entering the uterus.

通常通过烧灼和钳合输卵管来防止精子进入子宫。

The mounting male clambers on top of his quarry and extrudes his genitals, sometimes transferring sperm to the hind end of his partner.

当雄性甲虫爬到其猎物身上准备交配的时候，时常会把精液排到伙伴的后腿上。

Keeps sperm from clumping , so they have a

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Male infertility refers to the infertility and abortion of unknown reasons ,after above one year of marriage,cohabited,in a normal sex life,no contraception,defending on male's testicle producing sperm abnormally or affiliated Gonadal disfunction through examinations.

男性不育症是指婚后1年以上，同居，性生活正常，未避孕而不育或不明原因流产，经检查属男性睾丸生精过程或附属性腺的功能异常者。

A female can't flood the gene pool by commandeering extra mates; no matter how much sperm she attracts, she is not likely produce more than a dozen viable offspring.

一个女人不能通过霸占更多的配偶来繁衍足够的后代影响人种的进化。无论她吸引多少精子，她不可能生育12个以上可以存活的后代。

Farther, the sperm DNA of wild male was extracted from copulated wild female thelycum in three families of the ten.

从其中3个家系的雌性亲虾纳精囊中提取了雄虾精子DNA，微卫星标记显示各家系的子代个体均有一个等位基因与雄性亲虾的基因型相符，且符合孟德尔遗传规律，这为野生中国明对虾雌虾在繁殖季节一对一的繁殖行为提供了遗传学的证据。

Results:weijian obviously shortened the latent period of erection in castrational rats after electric stimulus and the latent period of coitus in castrational mice,increased coitus times in castrational mice,increased the appearance rate of sperm suppository in copulated female mice. the acute toxicity tests showed that the half lethal dose(ld50) of weijian was 901.53 mg/kg and 319.60 mg/kg, the long-term toxicity tests showed that large dose of weijian slightly increased the level of glutamic pyruvic transaminase and decreased the glucose,triglyceride and cholesterol of blood, while had no effects on other biochemical factors.

结果： 伟剑能明显缩短去睾丸大鼠的电刺激阴茎勃起潜伏期，明显缩短去睾丸小鼠的性交潜伏期，并增加去睾丸小鼠的性交次数，增加交配后雌性小鼠的精栓出现率；急性毒性试验测得伟剑的口服半数致死量（ld50）为901.53 mg/kg，腹腔注射的ld50为319.60 mg/kg；长期毒性试验研究表明该药在大剂量时可轻度升高谷丙转氨酶，轻度降低血糖、总胆红素及胆固醇，而对其他血液生化指标无影响。

The mature sperm was vented from copulating.

最终成熟的精子经过交配活动排出体外。

This assumption disregards many other factors such as the genetic contribution of the sperm the determining forces of our environment.

这种假设忽视了许多8ttt8其他的因素，如精子遗传和后天环境的决定性影响。

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