胚外中胚层在妊娠的第6.5至7.0天之间通过原始条带迁移到推测的卵黄囊。
Extraembryonic mesoderm migrates through primitive streak to the presumptive yolk sac between days 6.5 and 7.0 of gestation.
异常卵黄囊的妊娠，预后不良。
Poor prognosis was observed in pregnancies with abnormal yolk sacs.
目的：探讨心脏卵黄囊瘤临床病理特征。
Purpose To study the clinicopathological features of yolk sac tumor (YST) of the heart.
卵黄囊逐渐被血管化了。
卵黄抗体热稳定性检测。
目的探讨卵黄管残留疾病的诊断及外科治疗。
Objective To investigating the diagnosis and treatment of residual diseases of omphalomesenteric duct.
卵黄体含蛋白质和糖元，皮层颗粒富含多糖类；
The yolk body contained proteins and glycogen, and the cortical granule was rich in polysaccharide.
卵巢管属无滋式，主要由原卵区和卵黄区组成。
The panoistic ovariole mainly consists of germarium and vitellarium.
卵母细胞的卵黄颗粒上两种蛋白均呈现阳性反应。
There were positive reaction of two proteins in yolk granules of oocyte.
结果提示：鸡免疫卵黄中含有抗dnv的有效抗体。
The result infers that the immune egg yolk owned the special antibody against DNV.
该卵黄囊缩小。
染料锥虫蓝对卵黄囊的胞饮作用具有明显的双向作用。
The dye Trypan Blue has a remarkable biphasic effect on pinocytosis by yolk sal.
染料锥虫蓝对卵黄囊的胞饮作用具有明显的双向作用。
The dye trypan blue has a remarkable biphasic effect on pinocytosis by yolk sal .
斑马格局相当鲜明，并卵黄囊开始平平，因为它是吸收。
The zebra pattern is fairly distinct, and the yolk sac begins to flatten out as it is absorbed.
斑马格局相当鲜明，并卵黄囊开始平平，因为它是吸收。
The zebra pattern is fairly distinct and the yolk sac begins to flatten out as it is absorbed.
探讨了卵黄特异性抗体在防治中华鳖气单胞菌病中的应用。
The article discusses the application of egg yolk specific antibody on preventing and curing tryonyx sinensis disease.
冰冻切片的抗原也在第四周开始出现，定位在卵黄膜及卵壳上。
In the cryostat section, the antigens also appeared at the fourth week, they were localized on vitelline membrane and egg shell.
观察了三例人胚外形，其中一例还有保存良好的卵黄囊和卵黄蒂。
The yolk sac and yolk stalk on one of them were well preserved.
在所有被检测的幼体特征中，孵化温、湿度相互作用仅影响剩余卵黄干重。
Of all hatchling traits examined, only residual yolk dry mass was affected by interaction between temperature and moisture.
研究员马上认识到这些深棕色的小物体就是鲨鱼卵，经过仔细查看还可以看见卵黄。
The researchers quickly realised that these were sharks’ eggs.
目的：探讨监测血清afp对小儿肝母细胞瘤和卵黄囊瘤诊断和预后的意义。
Aim: to investigate the diagnosis and predication value of serum AFP in infants with hepatoblastoma and yolk-sac tumors.
结果：肝母细胞瘤和卵黄囊瘤术前血清AFP阳性率分别为85％，93％。
Results: AFP was significantly increased in 85% patients with hepatoblastoma and 93% patients with yolk-sac tumors.
结果还讨论了卵黄核、合成泡及环状片层等细胞器的超微结构与功能的关系等。
The relationship between ultrastructure and function of some organelle, such as yolk nucleus, synthetic vesicle and annulate lamella are also discussed in this paper.
研究了卵黄抗体添加剂对肉鸭生长性能的影响，并对有关生化指标进行了分析。
The effect of chicken egg-yolk antibodies additive on growth performance and relative biochemical indices in meat duck were studied.
以鸡蛋为原料，旨在寻找一种从鸡蛋中批量提取卵黄高磷蛋白的工业化提取工艺。
Using egg as the raw material, industrialized preparation technology for preparation of phosvitin from egg yolk developed.
你可以从你吃的食物比如强化乳类或者豆奶类食品，强化橘子汁，鸡蛋卵黄中获得维他命D。
You can get vitamin D from the foods you eat, such as fortified dairy or soy milk products, fortified orange juice, egg yolks, or your body can make it from the sun.
高浓度雌二醇对卵黄发生前期卵母细胞卵径增大也有明显刺激作用（P＜0．01）；
High concentration of oestradiol had a significant stimulation (P<0. 01) on oocyte diameter increase at the previtellogenesis stage.
近年来，卵黄蛋白原作为环境内分泌干扰物的“生物标志物”，得到了较深入的研究。
Recently, vitellogenin has been studied extensively as a biomarker for the screening of environmental endocrine disrupting chemicals.
近年来，卵黄蛋白原作为环境内分泌干扰物的“生物标志物”，得到了较深入的研究。
Recently, vitellogenin has been studied extensively as a biomarker for the screening of environmental endocrine disrupting chemicals.
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