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In part V using Lions' second Concentrate Compactness Lemma andvariational method,we prove the existence of minimal positive solutionof a class of quasilinear elliptic obstacle problems〓in space〓.

第五部分使用Lions的集中紧性原理和变分方法，我们证明了一类非齐次拟线性椭圆型方程对应的障碍问题〓在〓中极小正解的存在性。

They concentrate on discussing the dynamic character of the first and second moment of time series. Under normal distribution, the problem of dynamic financial risk measure and elusion can be solved effectively. However, it becomes invalid or is short of effectiveness.

他们的工作主要集中于讨论时间序列的一阶矩和二阶矩的动态性质，能够有效地解决正态分布条件下动态金融风险的测度与规避问题，对于非正态分布条件下相关主题的讨论具有一定的局限性。

The preparation process of equisetum pratense total alkaloid includes the following steps: coarse pulverizing equisetum pratense to obtain rough powder, methyl alcohol percolation to obtain percolate, recovering methyl alcohol, concentrating, degreasing by means of petroleum ether, alkalifying concentrate, CHCl3 extracting, soda lye washing, neutral water washing, recovering CHCl3 to obtain rough alkaloid, adsorption by using silica gel column, eluting, recovering solvent so as to obtain refined EPR.

该发明是通过两个步骤来实现的：第一步，提取草问荆总碱，流程：草问荆粗粉――渗漉液――浓缩液(析胶、石油醚脱脂、氨水碱化)――碱化浓缩液(CHCl3萃取)――CHCl3层――CHCl3液(回收CHCl3)――粗生物碱――吸附硅胶柱――精致EPR。第二步，选择实验试剂、仪器、用小鼠作为实验对象，进行中枢神经系统实验，研究作用及作用机制。

Make them to concentrate on sports games, erotica, enjoyment, playing games, transgress movies, religion and superstition.

让他们的头脑集中于体育表演、色情书籍、享乐、游戏、犯罪性的电影，以及宗教迷信。

After esterification, the ethyl-2-chloro-3-phenylpropionate reacts with diethyl malonate under the catalysis of sodium ethylate, and we obtain the corresponding triethyl ester. The-benzylsuccinic acid is formed by the triethyl ester reacting with concentrate hydrochloric acid and taking place hydrolyzation and decarboxylation reaction at the same time. In order to avoid the formation of cinnamic acid, the sodium ethylate and diethyl malonate must be react sufficiently. The course has simple operation, inexpensive materials and better yield.

具体制备工艺为：首先以L-苯丙氨酸为原料采用重氮化方法得到-2-氯-3-苯基丙酸，再经酯化得到-2-氯-3-苯基丙酸乙酯后在乙醇钠催化作用下和丙二酸二乙酯缩合，发生SN2反应，得到相应的三乙酯，然后经水解和脱羧，得到-苄基丁二酸；在实验中乙醇钠要和丙二酸二乙酯充分反应，避免生成肉桂酸乙酯；该过程操作简单，原料便宜，产率较高，总收率可达到26.8%。

We mainly concentrate on the role of Chinese etymologic relations of lexemes played in setting up inter-lexeme definitions, and on the role of both English and Chinese derivatives played in inter-lexeme definitions.

第五章探讨建立词位之间、词位与释义之间各种关系方式的语言基础，重点分析汉语同源关系对建立词位相关释义的作用，分析英语和汉语的派生构词形式对建立词位相关释义的作用。

In chapter 4, I concentrate on the strongly Christocentric character in evangelicalism.

它关涉到的是上帝在历史中的行动亦即三一神中的圣子位格。

Our factory produces the petrochemical industry equipment mainly, such as the tower equipment, reflecting the cauldron (electricity heating , steam heating type ), fermented pot; GXZ membrane evaporimeter , crystallization pan of rotating etc., spray desiccator, heat exchanger wait for; Pharmacy , Chinese patent drugs production line , oral liquid production line ; Response pan kind like multi-functional to draw pot, outside circulate evaporimeter , high-efficient person who concentrate , is it precipitate pot , alcohol retrieve tower , vacuum drying cabinet , mixer , disinfect , etc. to freeze.

本厂主要生产石油化工类设备，如塔类设备，反应釜、发酵罐；GXZ旋转式薄膜蒸发器、结晶锅、喷雾干燥机，换热器等；制药、中成药生产线、口服液生产线；反应锅类如多功能提取罐，外循环蒸发器、高效浓缩器、冷冻沉淀罐、酒精回收塔、真空干燥箱、混合机、杀菌等。

Andrew and Ewan in particular have to concentrate on keeping still.

Andrew 和 Ewan仍需要注意保持安静和不随意走动。

I think we should concentrate on the exceptions to this rule.

我认为我们应该把注意力集中在这条规则的特殊情况下。

The statistical analysis of this large set of mutations has led us to propose a diagnostic strategy that should help with the molecular work-up of optic neuropathies.

这一大系列基因突变的统计学分析引导我们提出一个诊断策略，可以帮助我们对视神经病变进行分子学的诊断检查。

The results show that the pipe grouting changes the mechanical parameters of surrounding rocks to achieve the security of engineering objectives by reinforcing surrounding rocks and bolcking the water.

研究表明：小导管注浆一方面改变了围岩的力学参数，另一方面利用浆液的固结特性可以实现堵水和加固围岩的工程目标，使隧道在开挖过程中的安全得到保障。