The release time of apyrene sperm was early than that of eupyrene sperm.

无核精子释放时间早于真核精子束。

Syngamy - The fusion of egg and sperm cells into a zygote.

Syngamy -融合卵和精子细胞成受精卵。

In human reproduction,one female egg is usually fertilized by one sperm.

在人体生殖过程中,个精子使个卵子受精。

Only one sperm fertilises an egg.

只有个精子使卵子受精。

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

精子产生于输精管壁性母细胞（精原细胞）。

All bdelloid rotifers are female, and they make embryos without any need for sperm.

所有蛭形轮虫都是雌性，而且牠们不需要精子就可以产生胚胎。

The acrosome in the head was spheral in shape, and there was only one mitochondria in the mature sperm.

核染色质凝集成团块状，中部不发达，线粒体融合成1个环绕中部。

We focused on several key events during fertilization from membrane fusion to karyogamy of sperm cells and egg cells.

探讨了从精细胞和卵细胞质膜融合到它们核融合完成这发育阶段某些主要事件。

The sperm morphology analysis using semiautomated sperm morphology analyzer (ASMA) was performed.To analyze Ureaplasma urealyticum, the culture method was used.

采用计算机自检测系统下人工修正方法进行精子形态分析，计算机自分析精子密度、活率、活力等精液参数。

The presence of immotile sperm or sperm shaking in place and not demonstrating forward motion is suggestive of immunologically related infertility.

如果存在非精子或原地摆但不向前精子要考虑免疫因素引起不孕。

To a certain degree, sperm head membrane maybe is the key factor to the androgenesis of the gynogenetic silver crucian carp eggs.

在某种程度上表明：精子膜蛋白可能是雌核发育银鲫卵子进行雄核发育关键因素。

Abstract： Aim:To establish the methods of microfertilization and explore the fertilizing potential of mouse sperm obtained from caput epididymidis and cauda epididymidis.

摘 要： 目:建立显微受精方法，并探讨小鼠附睾精子在显微注射进入卵母细胞后受精能力。

Objective To investgate the treatment of asthenospermia and necrospermia infertility with percutaneous vasal sperm aspiration ( PVSA) and intrauterine insemination ( IUI) .

目探索采用经皮穿刺输精管吸精子(PVSA)行宫腔内人工授精(IUI)方法治疗极弱精子症或死精子症不育患者。

Meanwhile, males of the species Moroteuthis ingens were found to have sperm packets that, once deposited onto a female, burrow into the body.

“（南洋力士钩鱿）精荚可以独立渗入皮下”，霍文说，“这是因为精荚分泌种酶能溶解鱿鱼身体组织。”

Micrococcal nuclease treatment indicates that the remodeling of the demembranated sperm chromatin has occurred and the structure of nucleosome is formed during nuclear reconstitution.

同时，利用小球菌核糖核酸酶处理结果表明，去膜精子在此非细胞体系中发生了结构改建并且在重建过程中形成了核小体结构。

In the adult, or medusa stage of a jellyfish, they can reproduce sexually by releasing sperm and eggs into the water, forming a planula.

在海蜇成体或水母体阶段，它们通过将精子和卵于释放到水中形成浮浪幼体而进行有性繁殖。

The mutation potential of ethephon was by investigated the micronucleus test of bone marrow polychromatophilic erythroblasts (PCE) cells and sperm shape abnormality test in mice.

摘要为测定乙烯利对人体健康影响，采用小鼠骨髓细胞微核试验和小鼠精子畸形试验分别检测了乙烯利对小鼠体细胞和生殖细胞致突变性。

He is good at urology diseases such as prostate hyperplasia, acute or onic prostatitis, difficult prostatitis, impotency, prospermia, ED, Stds, deficiency of sperm, male sterility.

尤其擅长于男性疾病诊断和治疗，采用中西医结合综合治疗措施，治疗前列腺增生、急慢性前列腺炎、难治性前列腺炎、阳痿、早泄、性功能障碍、性传播疾病、少精子、弱精子、精液不液化、特发性男性不育等疾病，方法独特、疗效显著。

When he judges it is safe to do so, he inserts the end of a pedipalp into the female's reproductive opening and discharges the sperm it carries.

当它确定安全时，便将须肢末端插进母蜘蛛生殖孔中并放出它所携带精液。

Purpose and Methods: In order to characterize the antimutagenic effect of seaweed polysaccharides(SP), the mouse bone marrow micronucleus test and mouse sperm malformation test were conducted.

本文选用小鼠骨髓嗜多染红细胞微核试验和小鼠精子畸形试验,对海藻多糖抗突变作用进行研究。