查询词典 three-body problem

This paper demonstrates three different strategies of point distribution for two-dimensional problem. Points are distributed at gravity point,at circumcircle center and at the edge of Voronoi. The examples using these three methods show that the results are satisfactory. Among the three methods, the last is best in terms of mesh quality.

本文以二维非结构网格生成为例，介绍三种布点策略，即重心布点、外接圆心布点和Voronoi边布点，算例表明三种方法均可生成满意的非结构网格，其中Voronoi边布点方法生成的网格质量更好一些。

Just enter in the senior high when a "truth" and "means", aim to stimulate students' seminars, responsibility, enhance the urgency to realize my ideal mai good first step three, To improve the results have been, I lose no time to hold ", three, two class - this class ", 99 encourages students to perservere, Graduate students in college entrance examination eve, near the various psychological reaction, please experienced teachers and students, the "three dialogue with the method of learning psychology problem" activity.

在刚进入高三时搞了一个"高三意味着什么"的"心里话交流会"，旨在激发学生增强紧迫性、责任感，为实现自己的理想迈好高三第一步；待全班成绩有了一定提高，我又不失时机地召开"前进，高三·2班--拼在99"主题班会，鼓励学生再接再厉；毕业前夕，针对学生临近高考出现的各种心理反应，专门请经验丰富的老师与学生对话，组织了"高三学习心理与方法问题"活动。

The research is carried on from four aspects. One is, based on answering the above open problem on a finite dimensional Euclidean space by means of partially ordered theory, to research the existence of solutions, global error bounds of proximal solutions and sensitivity of parametric unique solutions and present a class of variable-parameter three-step iterative algorithms for generalized set-valued variational inclusion problems by using - resolvent operator of set-valued mapping.Two is to consider the convexity, closedness and boundedness of the solution set of general set-valued variational inclusion problems and the sensitivity of the parametric solution set by means of graphical convergence theory. Three is to discuss directly the existence of solutions by using analytical methods for set-valued mixed quasi-variational-like inequalities and suggest a class of direct variable-parameter three-stepiterative algorithms for solving generalized set-valued variational inclusions.

研究分有三个方面：一是借助于偏序理论在有限维欧氏空间中解决了上述公开问题，在此基础上利用集值映射的η-预解算子，研究了广义集值变分包含问题解的存在性、逼近解的全局误差界、参数唯一解的灵敏性，并提出了一类变参数三步迭代算法；二是借助于图收敛理论研究了一般集值变分包含问题解集的凸性、闭性和有界性以及参数解集的灵敏性；三是用分析的方法直接讨论了集值混合拟类变分不等式问题解的存在性并提出了一类求解广义集值变分包含问题的直接变参数三步迭代算法。

At the same time,select three issues carries on solve by the Year 2008's ACM\ICPC finals:air condition machine is description the elbow of air conditioning installation problem,limited the quantity and types of air-conditioning pipe under the conditions of the installation of air-conditioning method;Password suspects,this problem is giving a system password letter combinations possible combinations and length under the conditions,to design an algorithm to calculate the correct arrangement of the password;Steam roller,this problem giving the situation of urban streets,drive steam roller from one point to another point of the shortest path,is used by how many time.

同时，选取了2008年度ACM\ICPC总决赛的三道题目进行求解：空调机器这一题描述的是对空调管的安装问题，在限定空调管数量和型号的条件下空调管可能的安装方法；密码嫌疑这一题求解的是在给定一个系统密码的可能的字母组合和长度的条件下，设计一个算法以算出正确的密码的排列方式；蒸汽压路机这一题是在给出城市道路情况的条件下，求两点间压路机走完最短路径总共所花费多少时间的问题。

Finally we introduce three-dimensional imaging system, three-dimensional reconstruction method and model that we have adopted, and the problem about image matching in the three-dimensional vision.

最后介绍了本系统所采用的立体成像方式、三维重建方法和模型，以及立体视觉中的图像匹配的问题。

In Chapter two, a three dimensional inclusion problem which includes three kinds of media is solved analytically, and these three kinds of materials are spherical inhomogenity, interface layer and the matrix.

在第二章中，首先用解析方法求解了一个包含三种介质的三维球形夹杂问题，这三种介质在物理上分别对应于球形夹杂、界面层和基体。

The city green turf grasses are under seriously stress for the shading of tall buildings, trees and shrubs, and lead to the recession of turf grass, so the author studied for this problem; Taking three cold-season sods as test material, including Festuca rubra Pernille、Poa pratensis Kentucky and Agrostis Regent. Effects of different concentrations of uniconazole (S3307) on shade-tolerance of three turf grasses under shading situation were studied by testing long-term growth and physiological characteristics of them.; After treated with S3307, the contents of chlorophyll and soluble sugar increased, plant height decreased, leaves width and thickness increased. All of these indicated that S3307 can evidently improve shade-tolerance of three turf grasses with different shade-tolerance, the optimal concentration of uniconazole is 100~200 mg/L; The results are very useful and meaningful for improving quality of turfgrasses under shading situation.

高大建筑物、乔木及灌木遮荫会使用于城市绿化的草坪草受到严重胁迫，造成草坪草衰退，针对这一难题进行了研究；以耐荫性不同的冷季型草坪草匍匐紫羊茅派尼、草地早熟禾肯塔基、匍匐翦股颖摄政王为试验材料，研究了不同浓度的外源激素稀效唑(Uniconazole， S3307)处理对3种遮荫草坪草生理及生长变化的长期调控作用；经稀效唑处理，3种草坪草叶片叶绿素含量和可溶性糖含量增高，植株株高变低，叶片变宽、变厚，不同耐荫性草坪草的耐荫能力均得到显著提高，最适的处理浓度范围100~200mg/L；这在生产实际中有重要应用价值，特别对提高受遮荫胁迫的草坪质量具有重要意义。

Firstly,the scenery characteristic of the riverside region is summarized,history retrospect,and the nature of this research field objectively and historically grasped. Secondly,an extensive analysis on the three major problems of the status of riverside environment,including the bioecological problem,the social problem and the economical,also sustainable developmental problem,is performed. Finally,the solution to these problems is derived from analysis,which consists of five major aspects,i.e. civil planning strategy,architectural scenery strategy,greenbelt scenery strategy,riverbank scenery strategy and roadway scenery strategy.

首先通过对滨江地带景观特色的总结、历史沿革的回顾，获得对研究领域的较客观的、历史的把握；其次重点分析当前滨江地带环境景观的现状问题，这些问题主要分为生态环境问题、社会问题与经济发展问题三个主要方面；最后以分析的结果总结出解决以上问题的景观设计策略，这些策略主要分为规划设计策略、建筑景观策略、绿地景观策略、河堤景观策略与道路景观策略五个主要方面。

Firstly, the scenery characteristic of the riverside region is summarized, history retrospect, and the nature of this research field objectively and historically grasped. Secondly, an extensive analysis on the three major problems of the status of riverside nightscape, including the bioecological problem, the social problem and the economical, also sustainable developmental problem, is performed. Finally, the solution to these problems is derived from analysis, which consists of six major aspects, i.e. civil planning strategy, architectural nightscape strategy, nightscape strategy on the square, nightscape strategy of the business street, roadway nightscape strategy and greenbelt scenery strategy.

首先通过对滨江地带景观特色的总结、历史沿革的回顾，获得对研究领域的较客观的、历史的把握；其次重点分析当前的滨江地带也就是汉口江滩地带夜景观的现状问题，这些问题主要分为生态环境问题、社会问题与经济发展问题三个主要方面；最后以分析的结果总结出解决以上问题的夜景观设计策略，这些策略主要分为滨江地带夜景观的规划设计策略、建筑物的夜景观策略、广场的夜景观策略、商业街的夜景观策略、道路和桥梁的夜景观策略与绿地的夜景观策略六个主要方面。

Think that the company manages the demand resolves three problems: Under the situation of ownership with controlling the power separation, the solution executive entrusts the agency problem with the shareholder, from but guarantee the shareholder benefits maximize; In gather medium-sized ownership of a share construction nextly, how moderate the problem of the proprietor a benefits, especially protect the small shareholder was not infringed upon by the big shareholder: Under the situation of the shareholder pursues the benefits to maximize, moderate the benefits related it the problem of a relation.

认为公司治理需要解决三个问题：在所有权和控制权分离的情况下，解决经营者和股东之间的委托代理问题，从而保证股东利益最大化；在集中型的股权结构下，如何协调所有者之间利益的问题，特别是保护中小股东不被大股东侵犯；在股东追求利益最大化的情况下，协调利益相关者之间关系的问题。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。