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Once the ovum is released it has a lifespan of 12 to 36 hours .

卵子排出后可存活12至36小时。

This research compared the methods of three kinds of ovum collection .

本研究比较了三种采集黄牛卵泡卵母细胞的方法。

Research Progress on Bovine In Vivo Ovum Pick & Up Technology

牛活体采卵技术的研究进展

The normal control group was treated with Physiological saline instead of OVA .

正常对照组用等量的生理盐水进行激发。

A preliminary study and Application on field distribution type of wheat stem maggot OVA

麦秆蝇卵田间分布型的初步研究与应用

The quality of ovum is an important factor to influence the embryo development and pregnancy rate .

卵子质量是影响胚胎发育、临床妊娠率的重要因素；

The Research on Preparation and Immunoactivity of OVA Immune Tolerance Factor

OVA免疫耐受因子制备及其免疫活性研究

The application and development of the Zhang 's high-efficiency ovum shape grinding ball

张氏高效卵形磨球的开发与应用

It provided pathological evidence for studying ovum women with sterility .

并结合基础体温测定，探讨B超监测卵泡发育及排卵规律，为研究不孕症妇女卵泡的病理学提供依据。

Ovum Pick-up Application in Vitro Production of Embryo of Cattle

牛活体采卵技术及其在胚胎体外生产中的应用

Tech companies will also look to build greater connectivity with the frozen ovum .

科技公司还将研究如何与冷冻卵子建立更密切的互联。

Objective Clinical value of observation ovum growth and oviposit in sterility symptom treatment .

目的观测卵泡生长发育和排卵在不孕症治疗中的临床价值。

Analysis of results of parasitic ovum in fecal samples from in-patients

住院病人肠道寄生虫卵检查结果分析

The largest cell in the human body is the female ovum , or egg cell .

人体中最大的细胞是女性卵子，或卵细胞。

The significance of these morphological changes of the fertilized ovum was discussed .

文中讨论了受精卵这些形态变化的意义。

Objective Psychological nursing can be control effectively of up anxious level before and after obtain ovum .

目的取卵术手术前后实施心理护理以有效控制患者焦虑水平的上升。

( of twins ) derived from two separate fertilized ova .

（指双胞胎）源于两个分开的受精卵。

Results Parasitic ovum were positive in 4 248 samples ( 10.55 % ) .

结果检出有寄生虫感染者4248例，总感染率为10.55%。

Study of human sperm chromosome by culturing hamster ova with hamster serum

地鼠血清培养异合卵制备人精子染色体的研究

Before yolk formation stage , the ova form large germinal vesicle .

在卵黄形成前期形成大的生发泡。

Morphological Changes of Penaeus orientalis Ovum during Embryo Developing Period

中国对虾胚胎发育期卵的形态变化

Anaphylactic shock model induced by OVA in mice

卵蛋白诱发小鼠过敏性休克模型的建立

An army of sperm must assault an ova and overcome it .

一群精子必须攻击一个卵巢并且战胜它。

The effect of mifepristone on the growth and development of fertilized ovum ( A review )

米非司酮对受精卵生长发育的影响（综述）

Effect on Embryonic Development by Laser Microirradiation to Fertilized Ova in Gold Fish

激光显微照射金鱼受精卵对其胚胎发育的影响

( of twins ) derived from a single egg or ovum .

（指双胞胎）源于同一个卵或者卵子。

Sub jade : taking the form of ovum , there is the size completely .

子玉：呈卵状，大小全有。

Results Purification of OVA 12 proteins and rabbits ' antibody serum of high titer were obtained .

结果获得纯化OVA12蛋白及高滴度的兔抗血清；

OVA is a global design company that has opened new offices in a prestigious location in Beijing .

固为车辆技术有限公司是一家新成立的国际化设计工作室，地址位于北京繁华时尚的三里屯。

METHODS : The rats asthma model was established by ovalbumin ( OVA ) sensitization .

方法：用卵蛋白雾化吸入致敏法，复制大鼠哮喘模型；