多重点

ABSTRACT:This paper mainly deals with Rhetorical Structure Theory in textual linguistics and discourse analysis, giving focuses on both nucleus-satellite relationship and multinuclear relationship.

本文简要论述了篇章语言学与语段分析中的修辞结构理论（Rhetorical Structure Theory 简称RST理论）。重点论述了RST的聚核-从属关系、多聚核关系以及两个个例研究。

There exits several MDO algorithms. But they are in our opinion either nonefficient or complicated. So we devised an algorithm called Subspace Approximation Optimization . In the SAO algorithm, the whole system is decomposed into one system-level optimization and several disciplinary optimizations so that a large and complicated problem can be divided into several easy-solving sub-problems. The coupling relationships and the coordination among disciplines are presented by equality constraints and these equality constraints are assigned to relevant disciplines. The optimums of design variables in system level optimization are transferred to discipline level optimization. The optimums of design variables in discipline level correspond to the point that is the nearest to the optimums of design variables in system level. If the optimums of design variables in system level are out of feasible region of discipline 1eve1, linear constraints can be built in the system level optimization using the design variable optimums obtained by the discipline level optimization. The system level optimization would improve the design of the whole system with these linear constraints.

目前，国内外已经发展出了多种飞机多学科设计优化算法，本文的重点是针对协同优化算法的不足，提出了子空间近似优化算法(Subspace ApproximatingOptimization，SAO)，SAO算法中，整个系统的优化问题被分解成一个系统级优化和若干学科级优化，而各个学科之间的耦合与权衡关系则被当作等式约束，这些等式约束将被分配到各个学科级优化中去，系统级优化的任务是寻找整个系统的最优解，而学科级优化的目标函数是以系统级优化分配下来的设计点为圆心的超球半径的平方，因此，如果系统级优化分配下来的设计点在学科级优化可行域内，则学科级优化目标函数为0，反之，则学科级优化的最优点是系统级优化当前设计点距离可行域最近的点。

In order to enhance the precision and universality of the software, the author provided some improved way of calculation accordingly. The description of arithmetic in the nonsymmetrical valve train cam profile and polynomial dynamic cam profile was stressed.

为使该软件具有更高的计算精度和更好的通用性，文章相应地提出了一些改进算法，重点对非对称式配气凸轮及多项动力凸轮的算法加以描述。

Supported by the National Science Foundation of China, this thesis concentrates on the image sparse representation theories, methods and the image processing applications based on sparse representation. We make deeply study for the applications based on multiscale geometry analysis, theories of overcomplete sparse image representation and its applications, theories of sparse image representation via combined transforms and its applications.

本文在国家自然科学基金项目&联合基图像稀疏表示理论研究及其应用&的资助下，针对图像稀疏表示理论、方法以及基于稀疏表示的图像处理应用问题，重点围绕多尺度几何分析在图像处理中的应用、基于冗余字典的超完备图像稀疏表示理论及应用、组合变换图像稀疏表示理论及应用等内容进行了探索性的研究。

Control of soil and water loss on the Loess plateau emphasizes on oversand and coarse sandy area, Silt-arrester dam is the key to the object.

黄土高原水土流失治理的重点在多沙粗沙区，淤地坝是实现治理目标的关键措施。

The specific laboratories affiliated to the state key laboratory are well equipped to support researches in palaeobotany, structural botany, cytology, protein analysis, structural genomics, and functional genomics, etc.

系统与进化植物学国家重点实验室不仅是该领域最具活力的研究团队和重要支撑平台，也是培养人才的基地，目前已经培养了200多名博士生和硕士生。

Gradually, it is becoming one of the most important industries in many pastural areas.With abundant tourism resources and characteristics, the first branch of Chabei Grassland, Hebei province is worth the deep exploitation The tourism planning case can be a reference for grassland tourism, especially for Hebei Province.

在国内，草原旅游正日益成为人们&回归自然&的重要旅游方式，许多草原牧区也将旅游业作为重点发展的产业之一河北省北部有着&草茵如海甚汪洋&的草一原景观，近年来旅游业依托这一资源优势已开发出多条以草原风光为主题的旅游线{Zj。

Emphasis analyzed,researched and estimated pinacol rearrangement actions,catalysts,reaction machine,related some reaction formulae etc,and characteristic,regulation relative with migration groups and more uses.

重点分析、研究和评述了频呐醇重排的作用、所用的催化剂、反应机理、相关的一些反应式、与迁移基团相关的重排特征和规律以及其较多的应用等，也论及了反频呐醇重排反应恰好是频呐醇重排的逆过程。

The adsorption behavior of polydisperse polymers at solid-liquid interfaces was studied by the method of Monte Carlo simulations based on the lattice model, and effects of the polymer chain length in systems of both average and normal distributions on the adsorption layer thickness were evaluated.

在格子模型基础上用MonteCarlo方法模拟研究了多分散高分子在固液界面的吸附行为，重点考察了平均分布和正态分布两种不同链长分布形式的高分子在固液界面吸附层厚度的分布规律，模拟结果与概率统计模型计算的吸附层厚度分布趋势一致。

He adsorption behavior of polydisperse polymers at solid-liquid interfaces is studied by the method of Monte Carlo simulations based on the lattice model, and effects of the polymer chain length in systems of both average and normal distributions on the polymer conformation (tails, trains and loops distribution) are evaluated.

在格子模型基础上用Monte Carlo方法模拟研究了多分散高分子在固液界面的吸附行为，重点考察了平均分布和正态分布两种不同链长分布形式的高分子在固液界面吸附构型的分布规律。发现高分子不同的链长分布形式，对高分子吸附构型的性质影响较大。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。