按照数学家们的分类，三叶形是最简单的纽结。 所谓纽结，它是三维空间中不与自己相交的封闭曲线，或者说是三维空间中与圆周同胚的图形。
The trefoil is the simplest knot in mathematicians' classification.
并推广了微分同胚的有关结果。
体细胞胚的诱导是大豆体外再生的关键。
Somatic embryo induction was the key in soybean regeneration.
“胚状体”的发育与合子胚的发育过程相似。
The development of the embryoids is similar to that of the zygotic embryo.
成熟培养能促进体胚的生长发育、提高再生植株的数量。
Maturation culture could accelerate somatic embryo developing and enhance the amount of regeneration plant.
因而，母体对种子休眠的影响可能与胚的ABA敏感性无关。
Therefore, maternal (effect) on seed dormancy might be irrelative to embryonic sensitivity to ABA.
DNA和蛋白质合成速度的变化与体胚的增殖及组织分化相关；
The DNA and protein synthetic rates have relations with the somatic embryo increment and tissue differentiation.
这位科学家把植物胚的胚柄与哺乳动物的滋养层做了直接的比较。
The scientist has made a pointed comparison between suspensors of plant embryos and mammalian trophoblasts.
结果表明，微波处理可钝化小麦胚的脂肪酶，有利于小麦胚的储存；
The results showed that microwave radiating can inactivate wheat germ lipase and prolong its storage time.
体细胞胚的诱导及其频率高低与材料基因型、培养基和培养条件有关。
The somatic embryo induction and induction frequency were related to genotypes, media and culture conditions.
结合形态与结构分析，表明差异蛋白质可能与体细胞胚的发生和发育相关。
In combination with morphological and structural analysis, it indicated that these specific proteins may be relevant to embryo formation and development.
最后在不拔出注射针的情况下直接注射细胞核或完整细胞进而完成重构胚的构建。
Then a reconstructed embryo was completed by the direct injection of the donor nucleus or cell without pulling out the injection pipette.
非常有趣的是，发育中的哺乳动物晶胚的心脏在分化为四腔室前，与斑马鱼的双腔心脏非常相似。
Intriguingly, before the heart of a developing mammalian embryo separates into four Chambers, it looks similar to the two-chambered zebrafish heart.
基因型和受体的选择，转基因体系的改进，体细胞胚的脱水处理等是提高大豆转基因效率的重要因素。
High efficiency of transformation is related to selection of genotype and recipient, desiccation treatment of somatic embryos and improvement of transformed system in soybean.
通过石蜡切片观察了转基因水稻幼胚的发育情况，结果表明细胞和组织的分化在胚的发育过程中被阻断了。
The rice embryo development was investigated by paraffin section, and the results indicated that cell and tissue differentiation was interfered during embryo development.
该研究证实了渗透调节物质可促进体细胞胚的诱导：添加甘露醇或山梨醇后，由于细胞内物质积累，愈伤组织生长速率减慢。
The study confirmed the infiltration of regulators can promote the induction of embryonic cells: Add sorbitol or mannitol, due to accumulation of material within cells, callus growth rate slowed down.
本文利用群胚的有关知识证明了李群在基本群胚上的提升作用有余伴随等变的动量映射这一结论，进而刻划了辛群胚的几何性质。
In this paper, in accordance with the knowledge of Groupoid, we proved that the nature life of Lie Group on a Fundamental Groupoid has a coadjoint equivariant momentum mapping.
麦胚具有很高的营养价值，可以制取麦胚粉作为营养强化剂添加到各种食品中。
Because of their very high nutritive value, wheat germs can be processed into germ flour to be supplemented into various foods as a nutritional enhancer.
结论优化的电融合参数是决定供体核-卵母细胞复合体融合与重组胚激活的关键因素。
Conclusion Optimal parameters for electrofusion are crucial for the fusion of donor-recipient pairs and the activation of the reconstructed embryo.
麦胚是面粉生产的副产物，由于含有多种功能成分，往往被用作功能辅料来提高食品的营养价值。
Wheat germ is a by-product of mill factory, often regarded as a functional ingredient to promote nutritional value of food.
与其它种类的植物油相比，小麦胚油的天然维生素e含量很高。
Compared to other kinds of vegetable oil, the tocopherol content of wheat germ oil is fairly high.
报道了松潘裸鲤的胚胎发育和胚后仔鱼发育的各期形态特征及发育特点。
This paper reports the morphological features and development characteristics of Gymnocypris potanini during its embryonic and post-embryonic stages.
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.
对于干细胞研究的态度，他说在2004年，某位科学家告诉他这项研究不涉及到道德问题，因为用于研究的晶胚无论如何都将被销毁之后，他的看法有了改变。
On stem cells, he says he changed his mind in 2004, after a scientist told him there was no moral issue involved because the embryos used in the research would be destroyed anyway.
研制了以脱脂麦胚为主要原料，辅以薏米、奶粉、蔗糖，经乳酸菌发酵后配制的一类营养型饮料。
We have prepared a new kind of dietetic beverage with acidophilus bacteria by using defat wheat germ, sugar, milk and the seed of Job's tears.
研究人员打算研究：微生物是否可以在星际旅行中存活，并据以评估胚种说存在的可能性。
Researchers plan to evaluate the likelihood of panspermia by studying whether microorganisms can survive an interplanetary journey.
研究人员打算研究：微生物是否可以在星际旅行中存活，并据以评估胚种说存在的可能性。
Researchers plan to evaluate the likelihood of panspermia by studying whether microorganisms can survive an interplanetary journey.
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