查询词典 genetic code

It can be concluded from the experiment results that hatchery seed has lower genetic variation and large-scale hatchery seed releasing affects the genetic diversity of the natural population. The shrimp distributed along China coast in Bohai Sea and Yellow Sea may consist of more than one populations. The viral disease resistant ability of F. chinensis is proved to be genetically inherited and can be improved by genetic selection.

通过对实验结果的进一步分析认为：中国对虾人工育苗的过程使后代群体的遗传多样性下降，人工培育苗种的大规模放流影响了自然群体的遗传多样性；，分布于我国沿海的中国对虾可能由多个自然群体构成，还存在未被发现的种质资源；中国对虾抗WSSV病毒感染是由遗传决定的，选育可提高中国对虾对WSSV的抗性。

UPGMA cluster analysis and genetic differentiation among populations showed that there had closer genetic relationship between Gongliu and Xinyuan populations and between Huocheng and Yumin populations and lower genetic variation between the populations.

UPGMA聚类分析和群体间遗传分化系数显示，巩留群体和新源群体之间，以及霍城群体和裕民群体之间，遗传关系最近，群体间遗传变异最低。

At the same time, to counter the problem that traditional coding method of genetic algorithm is difficult to design for this model, conventional genetic algorithm is modified by extending encoding method form digital string to matrix and defining corresponding genetic operator operation, this make encoding clear and understanding easy.

同时，针对遗传算法传统编码方案所存在的问题，提出了遗传算法的改进方案，将染色体结构由传统的数字串扩展到多维数组，并定义了相应的遗传算子操作，使得编码清晰、易于理解，遗传算子操作方便。

In a whole, the genetic diversity of clonal plants is much higher than that had been expected before. Although the genetic diversity is lower than their sexual congener, widely genetic monomorphism has been rarely found.

总体而言，克隆植物拥有比早期推测大得多的遗传变异，虽然克隆种与其近缘有性繁殖种相比，遗传多样性较低，但广泛的遗传单态性却很罕见。

There were three isozyme (AMY1, AMY2 and AMY3) at the locus of amylase in Qinghai Merino, moreover, there were two genotypes of AMY2A and AMY2O at the AMY2. Monomorphism was tested at the locus of AMY in Gansu Alpine Merino. The degree of genetic variability estimated by Nei's expected average heterozygosity for the 6 blood protein loci was relatively higher in Gansu Alpine Merino and in Qinghai Merino than that in others, which indicated that there are higher genetic variations and richer genetic diversity in Alpine Merino.

从6个血液蛋白位点的Nei氏预期平均基因杂合度所估计的群体内的遗传变异以及与本研究其它群体的结果相比来看，甘肃高山细毛羊和青海细毛羊的群体内的遗传变异相对较大，而其它群体内的遗传变异则相对较小，说明高原型细毛羊群体内遗传变异程度较大，遗传多样性较丰富，具有较大的选择潜力，为高原型细毛羊进一步选育提高提供了遗传基础。

The research advances in genetic relationships of peach germplasm, including the morphologic, cytology, palynology, biochemistry and DNA molecular markers, were reviewed in this paper. The actuality, prospect and urgent problems of peach germplasm resources were also discussed. To further study the genetic relationships of wildness, sib wildness and cultivar groups of peach, we may resort on genetic markers and DNA sequence analysis in addition to morphological characters.

本文从形态学、细胞学、孢粉学、生物化学及DNA分子标记等几个方面综述了桃种质资源亲缘关系的研究进展，探讨了桃种质资源亲缘关系的研究现状、前景及尚需解决的问题，并就进一步开展桃种质资源亲缘关系的研究进行了分析，提出桃种质野生种、近缘野生种厦不同栽培品种群间的分子系统学关系是今后研究的重点。

Based on simulation and thorough research of the muti-effect evaporative system, a process of paratactic combination evaporation is added to this system and Genetic Algorithms is used for optimization. In this thesis, Simple Genetic Algorithms and Modified Genetic Algorithms are used to optimize the pressures in evaporators.

在模拟的基础上，通过对齐鲁石化氯碱厂蒸发系统进行深入研究后，本文将并列组合式热泵蒸发工艺应用到该系统中，并运用简单遗传算法和改进的遗传算法对改进后蒸发系统的压力进行了优化，优化的结果显示生蒸汽用量分别减少14.8％和18.5％。

Genetic diversity analysis within and between the green peafowl and the blue peafowl populations demonstrated that the expected heterozygosity of two peafowl populations were 0.2482 and 0.2744, respectively. The inbreeding index, Reynolds' genetic distance and gene flow between the two populations were 0.078, 0.0603 and 3.896 respectively. These results indicate that the heterozygosity and the genetic diversity of these two peafowl populations were very low, and suggest a tendency towards intermixing.

蓝孔雀和绿孔雀群体间和群体内的遗传分析结果表明，绿孔雀和蓝孔雀两个群体的期望杂合度分别为0.7422和0.6943，群体间的遗传分化系数为0.078， Reynolds'遗传距离和基因流分别为0.0603和3.896，结果显示这两个孔雀群体的杂合度和遗传多样性水平都很低，且有相互混杂的趋势。

To analyze quantitatively the performances of genetic algorithms used in aerodynamic optimization design and the effects of the skills introduced, the numerical test planform for genetic optimization models is set up on Microsoft Fortran Powerstation. As applications, several aerodynamic optimization designs for airfoil, wing and aircraft are carried out to testify the adaptation of genetic optimization models.

建立了以Fortran Powerstation 4.0为开发环境的各种遗传优化模型的数值试验平台，对各遗传算法、改进技术及其优化模型的性能（优化质量和优化效率、可操作性）进行定量分析，并在此基础上建立了翼型、机翼和全机的优化设计软件系统。

This article in by has in the foundation which the method studies, is easy in view of the standard genetic algorithms in the solution Vehicle Routing Problems to appear precociously, is easy to fall into the partial optimal solution shortcoming, makes the improvement to the traditional genetic algorithms, proposed the multi- populations genetic algorithms.

本文在已有方法研究的基础上，针对标准遗传算法在解决车辆路径问题上容易出现早熟，容易陷入局部最优解的缺点，对传统的遗传算法进行改进，提出了多种群遗传算法（Multiple_population Genetic Algorithms）。

The circulation, consumption and reproduction of the trilogy have not only testified to its historical significance and literariness, but also invested it with new meanings.

该三部曲的流通、消费与再生产不仅验证了其历史意义及文学性，而切还赋予它以新的意义。

If he thought that he could buy me off, he would be wrong.

如果他认为他可以收买我，那他就大错特错了。