It is becoming a useful tool for studying cell differentiation, the mechanism of development, gene function, medicine selection, cell therapy and so on.
胚胎干细胞的发现为研究细胞分化，动物和人发育机制，阐明基因功能，筛选药物，细胞治疗疑难杂症等开辟了广阔的空间。
Orthogonal design improved experimental efficiency and precision, which was a good way for selection and optimization of callus induction medium and differentiation medium.
正交设计可提高试验效率及准确性，是愈伤组织诱导培养基、分化培养基筛选优化的好方法；
In this thesis, supplier selection criteria are analyzed from the perspective of competitive strategy, namely, cost-leadership strategy and product differentiation strategy.
本论文从竞争战略的角度，即成本领先战略和产品差异化战略，对供应商选择标准进行了分析。
With this medium, soft, transparent callus can be induced from immature embryos of embryo selection or tissue and organ differentiation stages. The induction frequency was 2-6%.
以该配方诱导幼胚，处于胚胎选择阶段和组织与器官分化阶段的幼胚，能诱导出松软、晶莹透明的愈伤，诱导频率为2-6％。
Although it was gone through evolution by artificial selection and natural selection, Allium tuberosum kept little differentiation from Allium ramosum .
虽然韭经历了长期的人工选择和自然选择，但与野韭的分化仍然较小。
In the proof, the tools of the conditional moment generating function and the differentiation on a net for the study on strong limit theorems in the random selection system are applied.
在证明中采用了一种把网微分法与条件矩母函数相结合应用于随机选择系统强极限定理研究的一种途径。
It is concluded that genetic differentiation of sheep breeds of Mongolian Group in China is mainly the result of natural selection (different living conditions).
初步推断我国蒙系绵羊品种间的遗传分化主要是自然选择(生境异质性)作用的结果。
The obvious differentiation of cold-hardness fitted on the early period selection of cold-hardness.
不同抗寒性的分化也适宜于耐寒性状的早期选择。
The notion of random selection is extended to random harmonious average of random transition probability for nonehomgenous Markov chains by using a new method of differentiation on net.
利用网微分方法将随机选择的概念，推广到有限马氏链随机转移概率随机调和平均的情形。
The result showed certain value in the judge of hydropericardium, diagnostic differentiation, the selection of operations and prognosis.
结果表明本法简便易行，对心包积液性质的判别、鉴别诊断、手术选择及预后估计均具有一定的参考价值。
The result showed certain value in the judge of hydropericardium, diagnostic differentiation, the selection of operations and prognosis.
结果表明本法简便易行，对心包积液性质的判别、鉴别诊断、手术选择及预后估计均具有一定的参考价值。
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