GJB2基因敲除小鼠在胚胎期致死。
GJB2 gene knockout mice led to death during embryonic period.
正常足月儿肾脏，可见胚胎期肾小叶；
可能为胚胎期基因缺陷致骨骺生长层发育障碍。
Gene defect during embryonic period may interfere the growth of osteoepiphysis.
事实上小鸡在胚胎期是有长尾的，不过在孵化之前就消失了。
In the embryo stage, chickens actually have a tail, which disappears before the bird hatches.
目的探讨胚胎期接受手机辐射对小鼠免疫功能的影响。
Objective to study the effect of mobile phone radiation on mouse which exposed to radiation during embryonic phase.
神经细胞在胚胎期有再生能力，但成年期后不能再生。
Nerve cells have the ability to regenerate in the embryo, but lose the ability as an organism ages.
胚胎期经胎盘“染铅”，是导致子代铅蓄积的重要原因。
Lead transmitted through placenta was an important cause of lead accumulation of offspring.
第八周结束标志着“胚胎期”的结束和“胎儿期”的开始。
The end of the eighth week marks the end of the "embryonic period" and the beginning of the "fetal period".
肝脏由胚胎内胚层演变而来，胚胎期肝具有重要的造血功能。
Liver origins from endoderm and is an important hematopoietic organ in embryo.
到现在为止，她已经变成了胚胎期的一个尾巴，实际上就是她尾骨的延长。
Up to now she has sported an embryonic tail which is actually an extension of her tail bone.
到现在为止，她已经变成了胚胎期的一个尾巴，实际上就是她尾骨的延长。
Up to now, she has sported an embryonic tail, which is actually an extension of her tail bone.
方法采用胚胎期至老年期小鼠全胚胎及脑切片的原位杂交染色。
Methods Embryonic to aged stage murine embryo and brain sections were stained by whole-mount in situ hybridization technique.
目的探讨胚胎期X线照射引起大鼠皮质内异常结构的形成机理。
Objective To explore the abnormalities of the developing cerebral cortex in rats caused by prenatal X-ray irradiation.
正常足月儿肾脏，可见胚胎期肾小叶；光滑的皮质表面有脂肪组织。
These are normal term infant kidneys. Note the fetal lobulations and the smooth cortical surfaces with some attached adipose tissue.
医学研究表明：这种流产出来的标本有60%—70%的受精卵不能完成胚胎期的发育；
Medical research shows that: the abortion out 60%-70% of the specimen fertilized embryos can't finish the development;
结论MCLR可透过胎盘屏障造成肝、肾等脏器损伤，可能在胚胎期就已形成肝癌高发基础。
Conclusion MCLR passes through the placental barrier and causes damage in kidney and liver, which may be the basis of high incidence of liver caner in the fetus phase.
三疣梭子蟹胚胎期腹神经链由1对大颚、2对小颚和2对颚足所对应的神经节以及腹部神经链组成。
The ventral nerve cord of the crab in the embryo included 1 pair mandibular neuromere, 2 pairs neuromeres of maxillae, 2 pairs neuromeres of maxillipede and abdomen nerve cord.
鱼类早期生活史可划分为胚胎期、仔鱼期和稚鱼期，其营养包括内源性、外源性和混合性三种类型。
Early Life History of Fish(ELHF) could be divided into embryonic, larval and juvenile stages. There are three types of endogenous, exogenous and mixed nutrition during Early Life History of Fish.
在两条主要左行走滑断裂的右侧叠覆区，两条主断裂第四纪的左行走滑运动产生一个胚胎期的菱形断陷。
In the overlap part of the right side of two main faults, the left-lateral strike-slip movement of them in Quaternary has formed the embryonic rhombochasm.
在胚胎期da神经元发育的后期，DA的合成与分泌是促使DA神经元进一步成熟和形成功能联系的原动力。
During late development in embryonic period, the synthesis and secretion of DA is the prime mover to promote maturation of DA neurons.
小鼠的造血和血管系统起源于胚外中胚层。胚胎期6.5-7天时在卵黄囊形成特征性的血岛结构发生向造血和内皮细胞的分化。
The hematopoietic and vascular systems of the mouse arise from extraembryonic mesoderm that migrate through primitive streak to the presumptive yolk sac between days 6.5 and 7.0 of gestation.
因为，太阳所发出的一种光线叫作紫外线（UVR），它可以造成胚胎期的婴儿的基因变化，从而造成可感知的后果，这种后果有好有坏。
It is because one type of radiation emitted by the sun, ultraviolet (UVR), is believed to cause genetic changes in the developing baby that may have a shaping effect, either beneficial or harmful.
婴儿现在已经脱离了胚胎阶段进入了胎儿期。
研究人员用快中子照射在胚泡期和体节形成开始之间的小鼠胚胎。
The researchers used fast neutrons to irradiate mouse embryos between the blastocyst stage and the beginning of somite formation.
通过激活休眠期的胚胎分子路径，干细胞被诱导参与新毛囊的形成。
By activating dormant embryonic molecular pathways stem cells were coaxed into forming new hair follicles.
研究小组确定伤口恢复期的老鼠模型创造了“胚胎窗口”的机会来操纵新毛囊数量和构成。
The team determined that wound healing in a mouse model created an "embryonic window" of opportunity to manipulate the number of new hair follicles that form.
结论通过卵细胞第一极体形态可预测受精卵及卵裂期胚胎质量。
Conclusion Zygotes and embryo quality can be predicted by morphology of the first polar body.
胎儿：人类从开始怀孕的第八个星期到出生这一期间的有别于更早期的胚胎的幼儿。
Fetus: in human beings, the unborn young from the end of the eighth week after conception to the moment of birth, as distinguished from the earlier embryo.
合成后的新细胞自动按照植入DNA序列“重新编程”，直到胚胎进入囊胚期，即由50至100个细胞组成的一个中空的球形幼胚。
The egg automatically 'reprogrammed' its DNA until it reached a stage of the embryo known as a blastocyst — a hollow ball of 50 to 100 cells.
合成后的新细胞自动按照植入DNA序列“重新编程”，直到胚胎进入囊胚期，即由50至100个细胞组成的一个中空的球形幼胚。
The egg automatically 'reprogrammed' its DNA until it reached a stage of the embryo known as a blastocyst — a hollow ball of 50 to 100 cells.
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