多分子的

This study adopts PCR method of coagulase - and sequencing RouGe detection a fragment of gene ESR polymorphism, and its single-nucleotide polymorphisms egg and correlation analysis, explore properties with different genotypes RouGe egg performance, from the relationship between genetic level RouGe reveal candidate function mechanism of molecular genetics of egg performance, RouGe new strains of selection for the use of genetic material.

本研究采用PCR-SSCP和测序的方法检测肉鸽ESR基因某一片段的多态性，并将其单核苷酸多态性与产蛋性能进行相关性分析，探索不同基因型与肉鸽产蛋性能之间的关系，旨在从候选功能基因层次揭示肉鸽产蛋性能分子遗传机理，为肉鸽新品系的选育提供可借鉴的遗传资料。

This photograph was taken by Kenneth Libbrecht of CalTech, using a specially-designed snowflake photomicroscope.

雪花是由小冰晶增大变来的，而冰的分子以六角形的为最多，因而形成雪花多是六角形的。

The plentifulness of SSR polymorphism in silkworm genome and the differences of the polymorphism among different silkworm races indicate the advantage of SSR in the construction of silkworm DNA fingerprints and analysis of inheritance diversity, and show the foreground of application of SSR in silkworm molecular marker technology.

家蚕基因组丰富的SSR多态性和不同家蚕品种之间的SSR多态性差异，表明了SSR标记在遗传多样性分析中的优势，展示了SSR分析在家蚕品种分子标记技术中的良好应用前景。

ABSTRACT This dissertation is devoted to studying the numerical methods for the forced Birkhoff systems with general symplectic geometric structure or Poisson bracket, including higher dimensional Birkhoff systems with multi-symplectic structure.

这篇文章着重研究一般辛结构下受到外力作用的Birkhoff系统的几何结构和几何算法，包括定义高维Birkhoff系统的概念，和研究它的多辛几何和多辛变分积分子。

In SVRT model polyatomic molecule whose spacial locomotion can be accurately treated as a regular non-symmetry rotor is dealt with as two different rigid segments which both can vibrate one-dimensionly through the line of their centroid.

因此，探索和发展多原子分子化学反应的理论模型和计算方法是非常有必要的，为此，人们提出了一些处理多原子体系反应的理论模型和约化维数的计算方法。

Synthesis of pyruvic acid from lactic acid by catalytic oxidation with oxygen was studied. The effect of catalyst composition, amount of catalyst and oxygen, reaction temperature and time on product yield was investigated and the optimum conditions were found.

由于丙酮酸的分子中同时具有羰基和羧基两个官能团，因而反应中心多而显出比一般化合物更为重要和特殊的化学性质，已引起越来越多的化学工作者的重视。

According to Wurtz reaction, if we can control solvothermal reactive condition to make the four C-Cl bonds in the carbon tetrachloride broken incompletely, according to the mechanism of Wurtz reaction, some kinds of free radicals or carbonium ions will be produced in solvothermal condition.

那么，如果控制反应条件，使四氯化碳等小分子碳氯化合物中的氯原子不完全脱掉，根据Wurtz反应机理，反应体系中将产生大量的碳氯自由基或碳正离子，它们在溶剂热条件下按照一定的生长规律进行组合，必将生成大量的多氯代多环芳香化合物。

Sequence analysis showed that the size of 16S rRNA gene was in 1235 bp, and lacking several regions which regarded as eukaryotic sequence, was more similar with prokaryotes than eukaryotes in sequence structural feature; it could be implied that the microsporidia had split from ancient eukaryotes very early in time on the phylogenetic tree.

序列分析表明，16SrRNA基因大小为1235bp，缺乏多个被认为是真核生物序列的区域，序列结构特征更多地类似于原核生物的，在进化上，推测微孢子虫在很早以前与原始真核生物产生分歧；分子进化分析发现，同属的微孢子虫可以处于系统进化树不同的分枝。

The genotypic polymorphism and polygenetic affinities of intergenus, interspecies and intraspecies among 21 strains from 6 yeast genus were studied with random amplified polymorphism DNA analysis.

采用随机扩增多态性DNA分子标记对6个属的21个酵母菌株的基因组DNA的多态性进行了研究，并采用聚类分析法评价它们之间的亲缘关系。

Since I hope within 5 years enough time, 2 or more ,3 or more proteases we can start to choose and pick based on the patient's needs.

因此我希望在未来5年的时间内，能有2个甚至更多的聚合酶或3个或甚至更多的小分子蛋白酶让我们依据病人的需要进行选择。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。