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2008年3月至6月，Z和C从来没有松懈过对www.176pet.com的关注和更新，不提倡过度的SEO，但如何把握好度是一件非常困难的事情，过度优化，肯定是会被搜索引擎所排斥的，很多人说我的站又被百度K了，也许就是你没能把握好度，也许是你违反了搜索引擎的某些收录规则，建议多看看站长网(www.admin5.com)，多看看搜索引擎收录指南，适当的优化，是有必要的，究竟白手起家，草根们都没有太多的资本去做闻名网站的宣传，去百度、google、yahoo做要害字排名，而新站要站稳脚跟，能友好的和各大搜索引擎搞好这种微妙的关系也是至关重要的。

Methods Activate groups A and C meningococcal polysaccharide with cyanogens bromide and prepare into MenAPS-ADH and MenCPS-ADH derivatives by reacting with 1, 6-adipic acid dihydrazine. Mix MenAPS-ADH and MenCPS-ADH derivatives with purified tetanus toxoid at a certain mass ratio, then add l-ethyl-3(3-dimethylaminopropyl)-carbodiimide to prepare bulks of MenAPS-TT and MenCPS-TT conjugates respectively. Mix the two bulks at a certain ratio, add stabilizer and lyophilize to prepare group A+C meningococcal polysaccharide conjugate vaccine.

A群和C群脑膜炎球菌多糖在溴化氰的活化下，以1，6己二酰肼作为连接子，与精制破伤风类毒素在碳二亚胺作用下结合，再按一定的比例将两者混合，制成A+C群脑膜炎球菌多糖结合疫苗原液，加保护剂冻干后，制成A+C群脑膜炎球菌多糖结合疫苗。

Firstly,based on the B.Bowermans result about the rate of convergence in Cesaro sense of certain nonhomogeneous Markov chains which the transition matrices converge,we are to study a certain nonhomogenous Markov chains which the transition matrices average converge to a period strongly ergodic stochastic matrice,and control the average convergenc rate of transition matrices,then we get the rate of convergence in Cesaro sense about the nonhomogeneous Markov chains by used the character of norm and the character of nonhomogeneous Markov chains.It is an extension of a B.

首先在B.Bowerman等人研究转移矩阵列收敛的一类非齐次马氏链，其Cesaro平均收敛的收敛速度基础上，研究转移矩阵列平均收敛到一周期强遍历随机矩阵的一类非齐次马氏链，通过控制转移矩阵列平均收敛的收敛速度，利用矩阵范数的性质、非齐次马氏链的相关性质等，得到该非齐次马氏链转移矩阵Cesaro平均收敛的收敛速度，是B。

Searching for specific ligand to a certain recepter or enzyme in human body from secondary metabolities of plants, animals and microorganisms, Optimization of lead compound under certain theory or hypothesis, and synthesis methodology investigation of pharmaceutically active compound are all tasks of medicinal chemistry.

药物化学的研究领域十分宽广，既有从动物、植物、微生物的次生代谢产物中寻找与人体内特异性的受体、酶的激动剂或拮抗剂，又有在理论、假想指导下的先导化合物的优化，以及生理活性化合物的合成方法学研究。

The biological tests indicate that most of the compounds synthesized have herbicidal activity in a certain degree and several compounds show certain bactericidal activity. Further anti-ALS enzyme test shows that two kinds of novel phosphonic ureas have good anti-ALS enzyme activity.

对合成的部分化合物进行了初步的生物活性测定，所设计的大部分化合物都显示出一定的除草活性，有的具有一定的杀菌活性；对两类膦酰脲化合物进行了离体ALS酶抑制试验，结果表明它们是很好的ALS酶抑制剂，同磺酰脲相当，有希望作为另一类ALS酶抑制剂的先导化合物。

But, even if one tries to think in a physicalistic manner, one cannot avoid thinking that, at a certain level of complexity, there emerges something which is neither a matter of seeing or interpreting the organism in a certain way from outside nor is it just one of those levels of complexity which one might notice or ignore.

但是，即使一个人试图按物理主义者的方式去看事物，也不能避免去认为：在特定的复杂水平上，它们涌现出了什么东西，而这不是按某种从外部的方式去看或去解释机制而能看到或解释得到的东西，也不是那种其复杂水平是可以注意或忽略的东西。

Aluminum polychloride easily available from market and CAT reacted at certain temperature for certain time and a complex coagulant was then attained.

以市场上可购得的聚铝为另外一种原料，通过PAC与CAT复配反应制得一种新型絮凝剂：阳离子单宁-聚铝复合絮凝剂。

A stable, water-insoluable film was prepared by oxidative electropolymerization of pyrogallol in pH7.0 phosphate buffer solution, anti modified on a glassy carbon electrode surface by electrochemical method. The modified electrode was exploited for the selective preconcentration of Cu at a certain potential. The preconcentrated Cu was firstly reduced at a certain potential and then was determined by differential pulse stripping voltammetry.

采用电化学方法在pH7.0磷酸缓冲溶液中，将邻苯三酚氧化电聚合制成稳定的水不溶性膜修饰在玻碳电极表面，将制得的膜修饰电极在一定电位下选择性预富集铜，并用差分脉冲溶出伏安法测定。

Workflow technology is defined as the part or complete automation of business process and is applied to solve the problem that achievement or access to achievement of a certain goal with the automation of delivering documents, information and tasks among some participators according with certain predefine rules.

工作流是业务过程的部分或全部自动化，其所要解决的问题是使在多个参与者之间按照某种预定义的规则传递文档、信息或任务的自动进行，从而实现某个目标，或促使此目标的实现。

The pyrometric cone and colored crayons and paints which indicate whether or not a certain temperature range has been exceeded serve a real need in certain high-temperature measurement situations, particularly where motion, as in tunnels and kilns, is involved.

B： Control Panel 背景知识：控制盘是控制系统与操作员之间的界面。常规的控制盘是一个钢的框架，上面装有各种显示仪表，控制仪表，报警装置和控制按钮。现在越来越多的控制系统的人机界面已经由计算机界面等取代。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。