Most grass embryos have a flap-like structure known as the epiblast.

大多数禾本科有一片瓣状结构通常称为外。

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胎。

They are engaging in an embryo research.

他们正在进行一项胎研究。

The development characters of small-nutted longan embryo were studied by paraffin method.

摘要采用石蜡切片法研究小核龙眼胎育特点。

Objective To study the effect of embryo neural stem cell transplantation(SCT) in neuronal ceroid lipofuscinosis(NCL).

目研究应用神经干细胞移植治疗神经元蜡样质脂褐质沉积病效果。

Thermal biology research of Rana chensinensis in different development stages(egg,embryo,tadpole,froglet and adult)was carried on the summary.

本文对中国蛙卵、胎、蝌蚪、幼体和成体等不同育阶段热生物学研究进行了综述。

We have just one editor and a reporter, so you could say that the newspaper exists in embryo.

我们只有一名编辑和一名记者，可以说这份报纸还只是在萌芽阶段。

The sows of natural oestrus ovulated more swiftly than the superovulation, and the embryo quality of nature was better.

超数排卵影响胎质量，自然情母猪较超数排卵母猪排卵较快，且胎质量较好。

The larger embellum could be used as a secondary screening indicator for identifying aposporous embryo sac in Apluda mutica.

存在珠附器是水蔗草无孢子生殖囊特点之一.

In the embryo an undifferentiated mesodermal component of an early trunk or tail segment or metamere, derived from paraxial mesoderm.

在胎时，一个无法区别中层组成一个早期躯干、或尾部片段或体节，衍生自轴旁中层。

Toxoplasmosis ophthalmopathy is mainly characterzied by congenital malformation from optic pit and optic vesicle s lesion at earlier embryo period,and retinochoroiditis from inflammation.

弓形虫眼病主要表现为胎早期受弓形虫侵犯使视窝及视泡形成生障碍引起先天畸形以及炎症损害引起视网膜脉络膜炎。

The mature embryo is corn posed of radicle, coleorhiza, plumule, coleoptile, scutellum and epiblast.That is the typical structure of the mature embryo of grass.

成熟具有根、芽、盾片、芽鞘、根鞘、外等典型禾本科植物成熟结构。

There are 5 stages during the development of embryo, including the stage of 2-celled proembryo, multicellular proembryo, globular proembryo, pyriform proembryo, differential embryo and mature embryo.

胎育经过二细胞原、多细胞原、球形原、梨形原、分化和成熟阶段。

Objective To investigate the relationship between the first polar body morphology of oocyte and the zygote morphology in pronucleus stage, embryo quality in cleavage stage.

目探讨卵细胞第一极体形态与原核期受精卵形态、卵裂期胎质量关系。

While this is occurring an unfertilized egg cell is taken from a Blackface ewe with its DNA filled nucleus taken out leaving a nucleus free egg cell that will later produce an embryo (3).

（接着如果把它）放在一个细胞核已去除黑面母羊营养细胞中，它一会儿就会产生一个芽。