没有合胞体蛋白，老鼠的胎盘畸形生长，胚胎死亡。
Without syncytin, mice developed deformed placentas, and their embryos died.
胚胎损失通常发生在有胚胎死亡时，经常是伴随着流产或娩 出。
Embryo loss occurs when there is death of embryos followed by absorption, or expulsion.
猪胚胎死亡直接影响着母猪的产仔数，并进而影响着养猪生产的经济效益。
Pig embryonic death lowers the litter size of female pig, and further the economical benefits of pig production.
在此过程中，外界环境中多种因素的影响都可能导致胚胎死亡或是胎儿畸形。
In such a process many environmental factors can lead to the death of embryos or malformation of fetuses.
通过模拟常压低氧和高海拔增氧孵化试验，研究了氧气浓度对低地良种鸡蛋胚胎死亡率和孵化率的影响。
Incubation experiments in simulated normobaric hypoxia condition and at high altitude with adding oxygen were conducted to explore influences of oxygen on embryonic mortality of chicken.
禽类胚胎性疾病是一类由多病原引起的综合性疾病，可造成禽胚发育受阻，胚胎死亡，孵化率降低等现象，导致养禽业的重大经济损失。
The disease of avian embryo is a synthetical disease which can cause the increase of embryo death and decrease of incubation rate and is fatal to economy.
本文综述了影响猪胚胎死亡的遗传、环境、营养和疾病等因素，并对生产实践中如何通过综合预防措施降低猪胚胎死亡率进行了初步探讨。
The present paper reviewed the genetic, environmental, nutritional and disease factors influencing pig embryonic death rate, and discussed the preventing approaches in practice.
研究者已经成功的从自然死亡的胚胎当中培育出了一个人胚胎干细胞系。
Researchers have succeeded in developing a human embryonic stem-cell line from an embryo that had died naturally.
本系列研究开始于叶和同事敲除小鼠胚胎dna的SENP2，发现胚胎在大约10天死亡。
This line of research started when Yeh and colleagues knocked SENP2 out of mouse DNA and found that the embryos died at about day 10.
程序性死亡即凋亡，在胚胎发育，变态，正常组织更新和自我平衡过程中都有发生。
Programmed cell death mediated by a process termed 'apoptosis' is the physiological cell death that occurs during embryogenesis, metamorphosis, normal tissue turnover and homeostasis.
本文初步研究了环境温度与东北小鲵胚胎发育速度。 胚长增长速度、死亡率之间的关系。
The paper deals with the relationships between ambient temperature and speed of embryonic development, death rate , speed of increase of Hynobius leechii.
研究表明，草安磷也造成小鼠胚胎发育迟缓、增加死亡或者发育不全。
GLUF has also been shown in mouse embryos to cause growth retardation increased death or hypoplasia.
相对湿度过低（45 %以下） ，导致胚胎严重失水死亡；
Relative humidity, if below 45 %, could induce embryo death as a result of severe loss of water;
为了研究UVB对两栖类动物早期胚胎发育的影响，以中华大蟾蜍为研究对象，用UVB分别以不同强度和不同时间照射其二细胞期胚胎，观察记录胚胎的发育过程、统计死亡率并在形态学上对UVB照射诱导的畸胚进行分析。
To study the effects of UVB on development of early stage embryos of amphibian, two-cell stage embryos of Bufo bufo gargarizans Cantor were irradiated by UVB with various intensity and time.
为了研究UVB对两栖类动物早期胚胎发育的影响，以中华大蟾蜍为研究对象，用UVB分别以不同强度和不同时间照射其二细胞期胚胎，观察记录胚胎的发育过程、统计死亡率并在形态学上对UVB照射诱导的畸胚进行分析。
To study the effects of UVB on development of early stage embryos of amphibian, two-cell stage embryos of Bufo bufo gargarizans Cantor were irradiated by UVB with various intensity and time.
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