The spherical embryonic mass of blastomeres formed before and resulting from cleavage of the fertilized ovum.

One pc of germ cell approaches to a ovum quietly at first.

一个精子一马当先悄悄接近卵子.

By day 11 the ovum begins to attach and implant in the lining of the uterus.

到第11天卵子着床嵌入子宫内壁.

One way is taking the cell from a fertilized ovum.

一种方法是从受精卵中取出细胞.

Field distribution pattern of the first generation of rice stem fly ovum was preliminarily studied.

对稻秆蝇一代卵在田间的分布型进行了初步研究.

In vitro, the acrosome reaction of sperm does not influence the ovum fertilization rate.

在体外, 精子顶体反应率的高低与卵子受精率没有明显的相关性.

Then you put that ovum into a different female's stomach.

然后,将那个卵细胞放到一个不同的雌性腹中.

The ovum develops only in the female, and the sperm cell develops only in the male.

卵细胞仅在女性体内产生, 而精子细胞则仅在男性体内制造.

Several suitable target antigens from Spermatozoa, ovum and reproductive hormones have been used for the vaccine.

人们从精子 、 卵细胞和生殖激素中筛选出最为适合的靶抗原用于免疫避孕疫苗.

How does a zygote differ from an ovum?

受精卵和卵细胞有何不同?

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。

The ovum passes into the fallopianuterinetube , and will degenerate if not fertilized within about 24 hours.

如果卵子排出后约24小时内未能受精就将退化.

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

The formation, development, and maturation of an ovum.

形成卵并产出卵;这是雌性动物的生理活动.

Additional, ovarian return bear to wear every months eduction the responsibility of an ovum.

另外, 卵巢还肩负着每月排出一个卵子的责任.

Chandler : I'm sorry but, ow-owww-owww !

什么?

OW I am going to tell a story,'said the Wind.

“现在我要讲故事了! ”风说道.

N ow we ask for the most important thing.

现在我们需要更重要的东西.

It needs a big wide-sounding name like ow , ound, round, ground!

得起个广阔些的名字比如:达, 大, 大帝, 大地!

What's this? It's green, too. Oh, no! Ow!

这是什么? 它也是绿色的. 哦, 不! 阿!

Ow! you gave me a charley horse.

哎呀,好痛! 你把我弄抽筋啦!