集中在...上

Firstly, the eigenvalue problem of a class of second order elliptic equation with critical potential and indefinite weights is considered. Then, using critical point theory, Trudinger-Moser inequality and the properties of the first eigenvalue, we prove the existence of a nontrivial solution for a class of nonlinear elliptic with critical potentialand indefinite weights in R~2. Secondly, we prove the existence of nontrivial solutions for a class of subcritical and critical elliptic systems with indefinite part in R~2 byusing a generalized linking theorem, Trudinger-Moser inequality and concentration-compactness principle.5. The existence of at least three weak solutions for discrete boundary value problem is established by using a three critical point theorem introduced by Ricceri.

首先，讨论了R~2中一类带不定权且含临界位势的二阶椭圆型方程的特征值问题，并借此特征值问题的第一特征值性质，利用山路引理及Trudinger-Moser不等式，证明了R~2中一类带不定权且含临界位势的非线性椭圆型方程非平凡解的存在性；其次，利用广义环绕定理，Trudinger-Moser不等式及集中列紧原理，得到了R~2上一类具有强不定部分的半线性椭圆型方程组在非线性项分别为次临界增长和临界增长情形下非平凡解的存在性。

Venture capital, including the various social capital has sniffed out this favorable wind direction, began searching the best private investment opportunities; general lack of innovation and intellectual property of their respective domestic pharmaceutical industry has been for the battalion, in the New Deal will also be stimulated embody the "Matthew Effect", and tends to be more concentrated; pharmaceutical industry will catch the circulation of "separation" of departure, in a bid to open up more profitable models.

包括风险投资在内的各种社会资本已嗅到这个利好风向，私下开始搜寻最佳投资机会；普遍缺少创新性和知识产权的国内制药行业一向各自为营，在新政的刺激下也将体现"马太效应"，并更趋于集中；医药流通行业则搭上"医药分开"的班车，力图开拓更多的盈利模式。

Over the past decades, various efficient methods based on organometallic homogeneous catalysts have been developed.

在过去的三十多年里，合成化学家们将更多的目光集中到金属有机化合物均相催化剂上，设计合成了许多金属配合物催化剂。

The modem social constitutional process is a social authority mechanism that common goround establish,the special inside and outride construction of that can centralize the political will and opinion on basis of presenting observation,negotiationg,debating and communicating,then the widespread and acceptable political decision born.

转贴自：《法学论坛》2006-5，24 原作者：季金华现代社会宪法程序是社会共识建立的权威机制，它特有的内外部结构能够促使在意见的充分陈述、交涉、辩论、沟通的基础上实现政治意见和政治意志的集中，从而形成普遍可接受的政治决策。

Point focus parabolic dish with Stirling engine and its solar tracker at Plataforma Solar de Almería in Spain.

点集中抛碟与斯特林发动机和太阳能跟踪平台上的太阳能阿尔梅里亚在西班牙

According to the results of stress calculation, provided the choosing basis for structure parameters of hydraulic cylinder and advanced a new cylinder bottom structure-oblique plane check ring concave groove.

对 10MN闭模挤压液压机卡环式液压缸进行有限元应力分析，根据分析结果，给出了液压缸缸底结构参数的选取依据，并在此基础上提出了一种斜面卡环凹槽新结构，有效解决了大型卡环式液压缸卡环凹槽的应力集中问

This will help you focus on the positive part of completing your goal and will help you achieve the clarity needed.

这样会帮助你集中精力在实现你目标的积极事件上。同时，也帮助你实现必需的目标清晰性。

In the view of Macker Pott, a professor of Harvard University, USA, the industry cluster means an assemblage which composed by a large number of interrelated enterprises and support organizations concentrate in space in a specific industry.

根据哈佛大学教授波特的定义，产业集群是指某个特定产业中相互关联的、在地理位置上相对集中的若干企业和机构的集合。

For elementary stage of the clin- ical practice with freshmen of TCM, it is important to train the ability of practice from clinic.In theoretical teaching,such principles were ado- pted as integrating theory with pra- ctice,emphasizing the main points with concise way,inspiring and directing.In clinical practice,more attention was paid to individual teaching with various ways for com- prehensive training.

对中医药大学一年级学生小学期的临床实习，笔者以"从临床出发，培养学生实际动手操作能力"为着眼点，在集中上理论课时采用了联系实际，精练突出、启发引导，因材施教等原则；临床实习中突出中医师承教育方式和通过多种形式及深入扩张的教学活动，对学生进行通科基础训练；病例分析则既有典型性又有预知性。

In the fifth sequel of the "Hellraiser" series, the puzzle box, best known as the "Lament Configuration," has been solved again and the demonic Pinhead has returned to Earth again with his legion of Cenobites to bring torture and death to those who stand in his way and to release Hell on Earth once more.

在"猛鬼追魂"系列的第5集中，手拿魔方，以"制造悲伤"著称，有魔力的Pinhead已经返回，准备再次用他的大批的Cenobites给地球上的人们带来地狱般的恶梦、折磨和死亡。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。