合成的

In this thesis, for the first time, we attempted at preparing a library of 20×20 dipeptide aldehydes based on 20 natural amino acids by parallel solution phase method.

本论文以20个天然氨基酸为原料，利用液相平行合成技术进行了一个20×20的二肽醛化合物库的系统合成的尝试，并进一步合成了3，6-二取代-5，6-不饱和-2-哌嗪酮化合物库。

The 4-acetylenyl phenylformic acid synthesized with the method contains carboxyl and terminal alkynyl, and is a valuable synthesized used in organic chemistry and is of great prospect to be applied in biomedicine, medicine field, etc, particularly in replacing phenylacetylene which is recently widely used in the synthesis of aromatic heterocycle, such as triazole.

本发明方法合成的4-乙炔基苯甲酸结构中含有羧基和末端炔基，是有机化学中极有价值的合成"砌块"，在生物医学、医药等领域有着十分重要应用前景，特别是取代苯乙炔近年来被广泛用于三唑等芳香性杂环的合成。

ABSTRACT This paper demonstrated that supplementing valine, isoleucine and leucine in synthetic media had different effects on biosynthesis of multi-components of biotechspiramycin.

在合成培养基中分别添加缬氨酸、异亮氨酸与亮氨酸考察其对必特螺旋霉素生物合成的影响，证明Val、Ile及Leu对必特螺旋霉素多组分的合成有着不同的调节作用。

This paper reviewed the recent development of synthesis of propyl lactide,discussed the effects of different synthesis techniques and various catalyst system s for the preparation of propyi lactide on the yield and discussed the prospect of propyl lactide synthesis.

介绍了丙交酯合成研究的最新进展，比较了不同催化体系和不同合成工艺对丙交酯收率的影响，并对丙交酯合成的发展前景进行了展望。

The synthesis method of p-menthylphenyl mercuric chloride was carried out.

研究了合成对甲苯基氯化汞的方法，考察了反应物料比、反应温度等对合成的影响，给出了合成的最佳反应条件。

Compared to the traditional organic synthesis, the advantages of organic electrosynthesis lies in that it can get rid of the source of pollution.

论述了有机电化学合成相对于传统有机合成的优势在于可以消除传统有机合成造成的污染的根源。

The result makes clear, xiang Di decides size of grain of course complex Mg2 jumbly (100~600 Nm), grain of retrorse titrate complex slants small (200 Nm controls), distributinging concentration of diameter of bead of grain of two-way titrate complex (400 Nm controls).

结果表明，正向滴定过程合成的Mg2晶粒大小混杂(100~600 nm)，反向滴定合成的晶粒偏小(200 nm左右)，双向滴定合成的晶粒粒径分布集中(400 nm左右)。

In this paper, the methods of preparations of photochromic diarylethenes are reviewed. Based on current research and existing products, some new and future approaches in this fascinating area are thoroughly discussed.

主要是从有机合成的角度，对这类材料的合成进行了较为全面的概括，对各种合成方法分别加以介绍和分析，对其发展趋势予以探索和展望。

The recent synthesis progress of glycoconjugate is reviewed,including the various methods of the glycosidic bond formation by chemical synthesis and the synthesis strategies of novel complex glycoconjugates,such as glycopeptides,glycoproteins and glycolipids .

本文介绍近年来各种糖缀合物化学合成的研究进展，包括各种糖苷键的化学合成方法以及各种特殊复杂糖缀合物，如糖肽、糖蛋白、糖脂的化学合成策略。

The translators' translation strategies and especially their thinking at various stages are the major concerns of the investigation. The findings are as follows: 1. As soon as the translator uses his visual recognition system to build a linear sentence, the sentence will move down to the translator's FLS and FSS, which functions as sifters. 2. It is important to analyze out "participants","process" and "relations among them" by semantic analyzer. 3. Pragmatic analysis is sometimes conscious and sometimes unconscious. 4. During the synthesis stage, translators tend to retain products synthesized from synthesis stage same in meaning, structure and style as the products analyzed from analyzer, which is the default way. However if he was not satisfied with the tentative products, he would send them back to syntactic analyzer or semantic analyzer to process them again. 5. Relative to synthesis, analysis is supposed to be the starting point.

主要推论如下：1、当译者用视觉辨认系统建立起线性的句子以后，句子就进入了译者的常用词汇存储和常用结构存储中，它们就像一个筛子，句子经过它们之后，在译者的短暂记忆中就剩下与它们没有重叠的生词和新句式结构了，然后这些生词和新句式结构就分别进入译者的词汇搜索机制和句法分析器中了。2、在翻译过程中进行&参与者&，&事件过程&以及&参与者与事件之间的关系&的语义分析，对于得到正确合适的翻译是非常重要的。3、语用分析有时是有意识的有时是无意识的。4、在合成阶段，译者通常都保持合成的结果和分析的结果在意义、形式、风格上一致，这是默认的途径，但是如果译者在合成阶段发现可能得到的结果不通顺或者译者不满意，他则会返回分析阶段，重新进行语用、语义或句法分析。5、分析是起点，合成是终点。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。