还原

Although detail removal can be carried out in the process of filleting operation and its inverse operation, entities such as vertices, edges and faces with which the simplification operations handle directly lack engineering features, so that the simplification fails to satisfy all the needs of engineering applications.

通过"弧化-还原"，虽然可以实现几何形体的简化，但是这种几何简化是在点、线和面低层次的几何元素上进行的，几何简化的工程意义不明显，难以保证实际应用中的分析几何模型简化的有效性。

We use the penicillin as starting material through oxidation, esterification, ring enlargement, deoxidation and halogenation and so on.

本文介绍GCLE的用途、研究现状、合成工艺及应用前景；重点研究以青霉素为原料通过氧化、酯化、扩环、还原，卤化等步骤合成GCLE的工艺。

The three steps, imine-formation, reduction and intramolecular amidation, were completed in one-pot at room temperature.

Schiff碱的制备、还原、酯的胺解三步在"一锅"内完成。

Goal compound synthesis namely: Take the vanillic acid as outset raw material, obtains 4- hydroxyl - 3- anisole methyl formate with the methyl alcohol reflux conditions, then after the etherification, the nitration, the return to original state, the ring closure response obtains 6- methoxy - 7- animal pen oxygen radical kui zuo lin - 4- alkone, then passes through the chlorination, the substitution aniline, to escape responses again and so on animal pen oxygen radical, etherification to obtain the goal compound; The goal compound and the diethylamine had the amine substitution reaction to obtain TM1, namely 4- benzene amino - 6- methoxy - 7- [2- hydroxyl - 3-(N, N- two ethyl aminos) third oxygen radical] kui zuo lin; Through zuo has the etherification with the Austria niter to respond obtains TM2, namely 4- benzene amino - 6- methoxy - 7- [2- hydroxyl - 3-(2- methyl - 5- nitryl imidazole) third oxygen radical] kui zuo lin.

目标化合物的合成即：以香草酸为起始原料，与甲醇回流条件下得到4-羟基-3-甲氧基苯甲酸甲酯，然后经过醚化、硝化、还原、环合反应得到6-甲氧基-7-苄氧基喹唑啉-4-酮，然后再经氯化、取代苯胺、脱苄氧基、醚化等反应得到目标化合物；目标化合物与二乙胺发生胺取代反应得到了TM1，即4-苯氨基-6-甲氧基-7-[2-羟基-3-丙氧基]喹唑啉；通过与奥硝唑发生醚化反应得到TM2，即4-苯氨基-6-甲氧基-7-[2-羟基-3-(2-甲基-5-硝基咪唑)丙氧基]喹唑啉。

During the detailed dissertation in this paper, it explains the meaning of the conception of "To perceive object voluntary and paint it" from the history and ideological background that make it be produced and considers that it is the principle of Chinese traditional painting ,relationship of main body and object which contained in it effect each other and being dialectic unity; Secondly, in the text it analyzes the characters of ancient scholars' painting between main body and object, then concludes that the characters of ancient scholar's painting are "not in pursuit of the similitude of appearance ","simple" and "formality".

在具体的论述中，本文从"应物象形"产生的历史条件与思想背景入手，还原"应物象形"概念的涵义，认为"应物象形"是关于中国传统绘画造"形"的准则，其中所包含的绘画创作主客体之间的关系是两相并举，互渗互化，辨证统一的；其次，文章对于文人画造"形"的特点和主客体进行分析，将文人画的造"形"特点归纳为："不求形似"、简约、程式化，并认为文人画造"形"严重偏向于主体，轻视客体；最后，文章分别将文人画造"形"的主客体与"应物象形"的主客体进行比较，得出结论：文人画造"形"不同于"应物象形"。

Synthesis of target compounds namely: to vanillic acid as the starting material with methanol under reflux conditions for 4 - hydroxy -3 - p-methyl, then ether, and nitration, reduction, cyclization reaction 6 - methoxy -7 - benzyloxy-quinazoline -4 - one, and then by the chloride in place of aniline, benzyloxy-off, such as etherification reaction of the target compounds; target compounds with the second and third occurrence of substitution reactions of amines by the TM1, that is, 4 - amino-benzene -6 - methoxy -7 - [2 - hydroxy -3 -(N, N-diethyl amino) oxy c] quinazoline; with ether occurred Ornidazole reaction of TM2, namely, 4 - amino-benzene -6 - methoxy -7 - [2 - hydroxy -3 -(2 - methyl -5 - nitroimidazole) C oxy] quinazoline.

本论文以嘌呤类似物喹唑啉为母核，分别在其4位和7位引入结构多样的取代苯氨基和柔性侧链，设计了一系列4-取代苯胺基-6-甲氧基-7-(2-羟基取代丙氧基)喹唑啉类化合物。目标化合物的合成即：以香草酸为起始原料，与甲醇回流条件下得到4-羟基-3-甲氧基苯甲酸甲酯，然后经过醚化、硝化、还原、环合反应得到6-甲氧基-7-苄氧基喹唑啉-4-酮，然后再经氯化、取代苯胺、脱苄氧基、醚化等反应得到目标化合物；目标化合物与二乙胺发生胺取代反应得到了TM1，即4-苯氨基-6-甲氧基-7-[2-羟基-3-丙氧基]喹唑啉；通过与奥硝唑发生醚化反应得到TM2，即4-苯氨基-6-甲氧基-7-[2-羟基-3-(2-甲基-5-硝基咪唑)丙氧基]喹唑啉。

In sandstones sonim rock complement and sandstone status, celadon detritus, deposit formed under reaeration, alkali environment, become source of ore, and through last activates, relocation, concentration, and formed deposit, ie.

在砂岩夹灰岩组和砂岩组地层中，还原、碱性环境下沉积形成的灰绿色碎屑岩形成了矿源层，经过后期的活化、迁移、富集，形成了沉积-改造型层控铜矿床。

Note that I use "reductive" in a broader sense than it is sometimes used.

注意，这里我使用"还原"是在一个更宽的意义上，相比于其他时候使用的。

The theory of supervenience is a new paradigm about mind-body problems which has recently risen in the realm of western philosophy. This theory regards the mind-body relation as supervenience and as an undeoxidized dependent and determinative relation.

随附性理论是西方哲学领域近年所兴起的、有关心身问题研究的新范式，该理论认为：心身之间是随附的，这种关系是我们以往认识到的同一、平行、还原、因果和蕴涵等关系之外的一种非还原的依赖和决定关系。

The synthesis of nalbuphine hydrochloride from thebaine as starting material was through following processes:oxidation,high-pressure hydrogenation,acetylation,removing methyl of 3-methoxy,hydrolysis,condensation,reduction and finial salification.

以蒂巴因为起始原料，经氧化、高压氢化、乙酰化、氰化、脱3-位甲氧基的甲基、水解、缩合、还原、成盐，合成了盐酸纳布啡，总收率达18。

As of Tuesday, Google's results were still censored in China.

截至周二，谷歌的搜索结果仍受中国审查。

In order to make the positive action increase and negative one decrease, the sub-forces of the social factors must be adjusted to form a centripetal force.

在这一过程中，人的主体性发挥是社会有机体健康发展的灵魂。