四对的

Uranium solution is obtained electrolytically by reducing uranyl ion on mercury cathode. The effect of the addition of various aminopolycarboxylic acids (such as EDTA, DTPA, CyDTA and TTHA) and organic water-miscible solvents (such as CH3OH, C2H5OH and CH3COCH3) on the stability of ura-nium in air has been investigated. The absorption spectra of uraniumand uraniumin 1 mol/l and 9mol/l hydrochloric acid solutions are examined.

本文采用汞阴极电解还原法制备了铀溶液，研究了在盐酸介质中各种氨羧络合剂乙二胺四乙酸二钠、二乙三胺五乙酸、1，2-环已烷二胺四乙酸、三乙基四胺六乙酸和水溶性有机溶剂甲醇、乙醇和丙酮的存在对铀稳定性影响，测定了在不同盐酸浓度中铀和铀的吸收光谱。

In this paper, we provided biomimetic synthetic methods for tetrahydroisoquinoline by using the benzimidazoline as a new tetrahydrofolate coenzyme model with 2-(3, 4-dimethoxyphenyl)ethylamine as nucleophile reagents under the condition of acid.

在心血管用药中，某些四氢异喹啉类化合物及其衍生物对心律失常、心肌缺血、高血压和心力衰竭有显著的治疗作用，对四氢异喹啉类化合物及其衍生物进行结构改造，进而发展成为药品成为当今医药的研发重点。

All products are characterized with 1H-NMR. The products are used as PTC in the fluoridation of p-chloronitrobenzene, tetrachloroterephthaloyl chloride and N-benzyltetrachloridephthalimide to detect the performance of the different PTCs.

分别将上述化合物作为相转移催化剂应用于对硝基氯苯、四氯对苯二甲酰氯和N-苯基四氯邻苯二甲酰亚胺等化合物的氟化反应中，以检测各催化剂的催化性能。

The dramatist and musical characters and the perfect combine between music and drama are the purports. The thesis is divided into three parts: the preface, four chapters and the conclusion. In the preface it is explained that what in this thesis is expounded and what kinds of study about the opera there are in Chinese and in the other area of the world. The first chapter is a summary about Gounod and his"Faust", which is the typical work in lyric operas. In the second chapter analysis on drama, the character and figures of the roles in the opera is made, and the characteristic of the plot ,the creation of opera and framework is put together. In the third chapter the music in the opera is studied, and the characteristics are put together on the base of particular analysis on typical passage of aria chorus ensemble. In the last chapter, perfect combine between drama and music is presented by study on Faust's character and psychology,and it is discussed that music implied the plot. And the conclusion is a whole comment of the opera and it's musical characteristics

更多论述。全文由引言、四个章节、结论等几个部分组成：引言是关于论文的选题、国内外研究现状的陈述，指明笔者选题的意义以及国内外学者对此课题的研究程度；第一章是对抒情歌剧作曲家古诺以及抒情歌剧的典范之作《浮士德》的一个总体上的概述；第二章从人物性格与戏剧情节、戏剧结构、戏剧创作等方面对歌剧《浮士德》进行分析，归纳其戏剧特点；第三章是对歌剧《浮士德》音乐特点的研究，通过对咏叹调类、重唱类、合唱类唱段中有代表性唱段的具体分析，总结其在音乐创作方面的主要特点；第四章从音乐刻画人物的性格与心理、音乐暗示戏剧情节的发展等方面，论述了歌剧《浮士德》在戏剧与音乐方面的完美结合；结论是对歌剧《浮士德》的整体论析。

It is launched from four aspects: First, to theobjective and heartless orders, he excavates the human nature's candidconditions and he promulgates incredibleness which the humanity exists;Second, to his type descriptions on the violence and the death,hecompletes reality setting;Third, his profound and wise thinkings areglittering the trick of narrative skills;Fourth, he draws up a play with theimitation on historical and standard dispelling.

主要从四个方面具体展开：一、对客观秩序的无情颠覆，发掘人性的本真状态，揭示人类存在的荒诞性；二、对暴力与死亡的迷恋式描写，完成对现实的解构；三、深邃的哲思中闪烁着花招百出的叙事技巧；四、在戏拟与模仿中实现对历史和规范的消解。

We also give out Schur decomposition for normal quaternion matrix.

对四元数正规矩阵，给出了其Schur分解，使得对某些四元数矩阵的计算得到了进一步的简化。

This articlebring forward some very new view about the sort of the shareholder's right in chapter1,and the shareholder's right is classified with self-profit right,common-profitright,expectancy right and coexistence right.

本文在第一章对股东权的分类提出了最新的见解，将股东权分为自益权、共益权、期待权和共处权，并在此后四章中分别对这四种股东权的诉讼进行了探讨，对我国关于股东权利的规定进行了全面的检讨，也对股东行使权利的方法，以及股东行使权利遇到障碍时的救济途径进行了系统研究，对我国公司法以及民事诉讼法的有关内容提出了许多新的科学设计。

Preparation of trimanganese tetroxide by air oxidizing free divalent manganese ions;2. In this paper, the trimanganese tetroxide with high specific surface area was prepared by the oxidation of the manganese powder with the catalyst - ammonium salt,and the effected factors were discussed.

研究了以铵盐作催化剂，利用高纯度锰粉悬浮液通空气催化氧化来制备高比表面四氧化三锰，并讨论了各因素对实验结果的影响，确定了反应的最佳条件；并对产品进行了检测和表征，经XRD检测确定产物为四氧化三锰。

Part one studies the sequence techniques, including the original sequence and its magic cube table, the sequence distribution in each movement and the sequence application techniques in different parts; Part two is a study of chord structure, consisting of fourth-fifth chords that are comprised of tritone, polychords, tall chords, note-cluster chords, as well as whole-tone scale chords; Part three is to analyze the techniques of polyphony, involving the counterpoint of melody and that of rhythm; Part four examines techniques of orchestration, such as those of conventional orchestration and of unconventional orchestration, and the figure of changing track of orchestration acoustics; Part five is a research of musical form structure, including illustrations of musical form structures in all movements, in addition to the effects of timbre, performing methods, dynamics, and density on musical form structural force.

本文将从五个方面来分析研究王西麟《第三交响曲》：第一，序列技术研究，其中包括原始序列及其魔方表、序列在各乐章的分布、多声织体中的序列应用手法；第二，和弦结构研究，其中包括三整音叠置的四五度和弦、复合和弦、高叠和弦、音块式和弦、全音音阶纵合化和弦；第三，复调技法研究，其中包括旋律对位、节奏对位；第四，配器手法研究，其中包括常规配器手法、非常规配器手法、配器音响效果变化轨迹图；第五，曲式结构研究，其中包括各乐章曲式结构图示，以及音色、演奏法、力度、织体密度对曲式结构力的影响。

Based on the interactive relationship of the elements, the author believes the most important thing is the role of educators. By further the role of education for both horizontal and vertical expansion, we can see that the subject of the museum and the museum environment are in a way to play the role of education.

通过对四种学习方式的描述，笔者提出了建构式学习更有助于家庭观众获得良好的审美经验的观点；在建构式学习方式的基础上，笔者又介绍了艺术博物馆中家庭观众审美经验完整、个性、理性的特点，并提出了构成观众审美经验的四要素，在四个要素的互动关系中，笔者认为最重要的就是教育者的角色，进一步对教育者角色进行横向和纵向的扩展利用可以看到博物馆主题与博物馆环境在某种程度上都担当着教育者的角色。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。