查询词典 sperm sac

However, Grant does not favour Smits's explanation that the skew towards having a boy after trying for a baby for a long time is due to the Y-sperm being better at penetrating viscous cervical fluid.

但是Grant并不欣赏Smits关于试图生孩子越长时间越容易生男孩是因为Y－精子更容易穿过子宫颈粘液的理论。

In experiment 2, the semen quality of 2 boars from Ilan Yiyang farm were diluted with BTS and MIII extender and stored for 3 days in the initial stage. The parameters of semen quality were including pH, motility, maturation, acrosome integrity and normal morphology of spermatozoa in diluted semen stored for 1 and 3 days. The diluted semens were also used for in vitro fertilization to evaluate the sperm penetration, polyspermy rate and the average number of spermatozoa per oocyte as IVF parameters.

试验二使用宜兰宜阳养猪场之2头性成熟公猪，采取精液后分别以BTS与MIII稀释液进行稀释，在保存1日与3日时检定其pH值、精子活力、成熟率，形态正常率等性状，并用此稀释保存之精液进行体外受精，纪录精子穿透率、多精入卵率与平均入卵精子数。

VCX/Y protein molecules are small size and high charge, which resemble those chromatin-associated proteins, such as histones or protamines, the latter mediate condensed DNA packaging in sperm.

依据氨基酸组成特点，该家族蛋白曾被推测为类似组蛋白和精蛋白的DNA或RNA结合蛋白。

Methods and Results Experiment 1: Intracytoplasmic injection of rat sperm heads was performed using 7~10 μm and 2~4 μm diameter pipettes and different injected method respectively.

方法和结果实验1：用直径为7~10μm和2~4μm的注射针以及相应的注射方法进行大鼠ICSI，ICSI后卵母细胞存活率(30.5% vs。 61.3%)和卵裂率(12.5% vs。 51.1%)均差异显著(P.05)；实验2：分别在hCG后14 h、16 h和18 h取卵进行ICSI，三组存活率77.4%、74.1% vs。

Brennan believes that these complicated defenses against sperm drove the evolution of male phalluses.

布伦南博士认为，这些复杂的防御推动了对精子进化男性

Millions of sperm cells leave the peins in a short burst in a fluid called semen.

数百万精子细胞离开阴茎，在很短的时间里爆发的液体称为精液。

Sucks the sperm into bulbs on the ends of his pedipalps. When he judges it

它会织出一个特殊的网，将精液排在上面，然后把精液吸附在须肢末端的球状物上。

Pacey said at the time that the mouse experiment would be "very useful to study the basic biology of sperm production".

帕西当时表示，对老鼠的这一实验会&有助于研究精子制造的基本生物学机制。&

Allan Pacey of the University of Sheffield, a sperm biologist of 20 years standing, declared he was unconvinced.

迎着20年资历的谢菲尔德大学精子生物学家艾伦·帕西宣布他对此不相信。

Dr Allan Pacey, a senior lecturer in andrology from the University of Sheffield, said that if soy genuinely had a detrimental effect on sperm production, fertility might well be affected in those regions, and there was no evidence that this was the case.

谢菲尔德大学的男科专家艾伦·佩西博士说，如果大豆真的对精子的产生有决定性影响的话，那么亚洲地区的生育繁殖就会受到影响，但是并没有证据显示这一点。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。