合成

The synthesis of Melia Azedarach L.oil using alkali isomerization technique was optimize by the central composite/response surface method for the purpose of improving its effective fraction,conjugated linoleic acid.

采用碱法异构技术，用响应面法优化苦楝籽油合成工艺，设计了影响其转化率的反应温度、反应时间和用碱浓度三个因素的二次正交组合试验，用SAS软件对实验数据进行回归分析，建立相应的回归模型，取得苦楝籽油合成共轭亚油酸的最佳合成条件，并进行氧化稳定性分析和新添加剂的加入。

On the basis of an analysis of several steps in synthesizing manganese iso-octoate ,a kind of paint siccative,the one-step direct synthesis method is put forward,in which barium hydroxide is used to replace sodium hydroxide,and all the materials are at once added in the same reaction process.

对漆料催干剂异辛酸锰的多步合成条件进行了分析研究，提出了用既是沉淀剂又是皂化剂的氢氧化钡代替氢氧化钠，同时投料，同时反应，一步直接合成目标产品的合成路线。

Methods Appraised the major technological processes for synthesising the benzocaine.

方法评价了合成苯左卡因的主要合成路线，在较优合成路线的基础上进行了试验研究，在酯化反应阶段进行了工艺改进并优化反应条件。

In fact, the application of chiral ILs in asymmetric catalytic transformations is still at a preliminary stage.Benzoin is an important intermediate in organosynthesis. And more than, chiral benzoin is important structure unit of many bioactive compounds and building blocks of many enantioselective synthesis.

苯偶姻是一种重要的有机合成中间体，而且光学活性苯偶姻是许多生物活性化合物的重要结构单元，是可用于立体选择性合成生物活性有机分子的重要合成砌块。

In this article,the synthesis method of Phenanthraquinone is discussed and five main methods are compared,such as the method of using biphenyl and derivative of diphenylethane and the method of Diels-Alder and rearrangement as well as the direct oxidation.

本文对菲醌的合成方法进行了综述并对其几种方法作了比较，其合成方法主要有以联苯及二苯乙烷衍生物为关键中间体的方法、以Diels-Alder及重排反应为关键步骤，以及直接氧化等五类合成方法。

However, there was a significant difference in quantity of SiC and Si3N4 which is accompanying product from the different bituminous coal.

用3种烟煤与SiO2在氮气保护下合成SiC，发现烟煤可以作为碳源合成SiC，但不同烟煤煤种合成产物差别很大。

On the basis of the introduction and analysis of the history, current situation and development of explosive synthesis of superhard materials, the mechanism and technology of diamond and dense boron nitride synthesis by shock compression and some explosive mechanics problem in explosive synthesis have been studied systematically in this research.

本文在对超硬材料爆炸合成研究的历史、现状及发展趋势进行评介、总结与分析的基础上，以金刚石、高密相氮化硼为研究对象，对爆炸合成理论与技术，以及爆炸合成中所涉及的一些爆炸力学理论问题进行了较为系统的研究。其主要研究成果如下

The study on soluble protein after eclosion when cantharidin synthesis is active in Mylabris calida Palla would help to clarify the synthesis mechanism of cantharidin and involved enzymes of the synthesis.

研究斑蝥素大量合成期的芫菁体内可溶性蛋白，有助于阐明斑蝥素合成相关酶蛋白的种类和合成机理。

This thesis consists of three main parts of the research work on the syntheses, structures and reactivities of the olefin-coordinated transition metal carbene and carbyne complexes. In chapter 1, on the basis of our previous research works on the reacitivites of the cationic carbyne complexes of transition metals with metalcarbonyl anions, we explored the reactions of the cationic carbyne complexes of manganese (1) and rhenium (2) with polymetalcarbonyl anions, and developed a new method for the preparations of heternuclear trimetal bridging carbyne complexes.

本论文对烯烃配位的过渡金属卡宾和卡拜络合物的合成、结构和反应性能进行了研究，主要进行了如下三方面的工作：第一章在本小组过去的研究基础上，进一步考察锰和铼的阳离子卡拜络合物1和2与羰基金属阴离子化合物的反应，用来合成异核多金属桥卡拜络合物，发展合成多金属桥卡拜络合物的新方法和新路线。

After being perfected, the technology of ultraviolet cathodoluminescence spectra might become an effective method for differentiating synthetic diamonds and natural diamonds, or synthetic diamonds from different company, or even synthetic diamonds from the same company but from different crops.

经进一步完善后，紫外阴极荧光谱技术有望成为鉴别天然和合成钻石、不同公司合成钻石或同一公司不同批次合成钻石的有效方法。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失