形式上

The exact form of exterior boundary value problems for plane potential problem is established with variational principle.

使用变分法确立平面 Laplace外问题的确切形式；在此基础上，为了避免使用无限区域上的 Green公式，通过构造紧支集上的无穷可微函数，获得满足非齐次控制微分方程的特解的重要结果。

In view of crosswell and 3D VSP layout, we use high resolution Radon transform based on Cauchy distribution to perform Radon transform for hole data. In this process, we study discrete dip overlay operator, improve damping factor that affects Radon energy convergence in order to let Radon energy converge, 6 resolve leggy in Radon data, and decouple smoothing effect among each energy group, we use Cauchy distribution to regularize data, let energy focus on one point, and improve Radon resolution. All these work well in wavefield separation. Finally, by inversion results and model trial, we verify the feasibility and stability of this method.

在Radon变换原理分析基础上，采用基于柯西分布的高分辨率线性Radon变换对井孔数据进行Radon变换，其间通过对离散倾角叠加算子求取的研究，及对影响Radon能量收敛的重要参数阻尼因子算法的改进，使数据在Radon域以能量团的形式呈现，得到很好的收敛效果，基本解决了Radon域数据的一定程度的拖尾现象，消除了各能量团之间的平滑效应，采用柯西分布来规则化数据，提高了Radon域的分辨率，Radon域能量也收敛到一个点上，有利于上下行波或纵横波波场分离。

In view of crosswell and 3D VSP layout, we use high resolution Radon transform based on Cauchy distribution to perform Radon transform for hole data. In this process, we study discrete dip overlay operator, improve damping factor that affects Radon energy convergence in order to let Radon energy converge, 6 resolve leggy in Radon data, and decouple smoothing effect among each energy group, we use Cauchy distribution to regularize data, let energy focus on one point, and improve Radon resolution. All these work well in wavefield separation.

在Radon变换原理分析基础上，采用基于柯西分布的高分辨率线性Radon变换对井孔数据进行Radon变换，其间通过对离散倾角叠加算子求取的研究，及对影响Radon能量收敛的重要参数阻尼因子算法的改进，使数据在Radon域以能量团的形式呈现，得到很好的收敛效果，基本解决了Radon域数据的一定程度的拖尾现象，消除了各能量团之间的平滑效应，采用柯西分布来规则化数据，提高了Radon域的分辨率，Radon域能量也收敛到一个点上，有利于上下行波或纵横波波场分离。

Secondly,we firstly study the properties of functions with values in a uni-versal Clifford algebra 〓,and we obtain the following very important basictheorems in universal Clifford analysis:Cauchy's integral formula,Cauchy's inte-gral theorem,the mean value theorem,the three versions of the maximum mod-ulus theorem,the Taylor's expansion,the Laurent's expansion and the residuetheorem etc..All of these results generalized the classical results.

第二，本文所讨论的各种函数性质以及所得的结果都在泛Clifford代数〓上所做的工作，它一方面包含了从前在泛Clifford代数〓上所做的工作，所得到的结果更广泛、更漂亮、更自然，另一方面，本文也是迄今为止第一次建立起来了在泛Clifford分析中与经典函数论相对照处基础地位的LR正则函数在特异边界上的Cauchy积分公式、Cauchy积分定理、平均值定理、极大模原理的三种表达形式、Taylor展式、Laurent展式留数定理等深刻的结果。

The basis of the relation between nomadic and farming cultures in ancient China had been of complementariness in economy,whose formation was determined by various natural environments in which different cultures were distributed,whereas whose contents and developmental direction depended on differences in the ways of earning their living in differing ecological environments.

中国古代游牧文化与农耕文化间关系的基础是经济上的互补性，这种互补性关系的形成是由不同文化所分布的自然环境决定的。而不同生态环境下生计方式的差异又决定着互补关系的内容及其发展方向。历史上游牧民族与农耕民族间在经济上互补关系的主要内容有朝贡贸易、互市贸易以及战争这种非正常的互补形式。

This paper concerns the firms' merger and pricing strategy of two groups of firms, on the condition that intro-group product is complementary and introgroup is competitive.

引言企业可以使用多种手段在市场上进行竞争，表面上看产品价格是其竞争的主要形式，但深层次上其产品特性决定了价格竞争的激烈程度。

Incident sale, run the activity of an insurance net and impoverished student heart linked to heart, open the communication of an informal discussion form first, give clothings gold expressing sympathy and solicitude for to them next, the most important still have insurance, have the relevant leader of the school attendantly, take a picture group photo, cannot go up the newspaper on TV, cannot go up newspaper go up local website.

事件营销，办一个保险网与贫困学子心连心的活动，先开个座谈会形式的交流一下，然后向他们赠送衣物慰问金，最重要的还有保险，在场的有学校的相关领导，拍照合影，上不了电视上报纸，上不了报纸就上地方网站。

Ludwig is a careful, sensitive and persevering artist, whose works mostly are installations. For example, put an transparent screen in a lakeside glasshouse, cast strong rays on it and then add some disorderly music, mix the flashing lights with man-made smog, occasionally dust pepper in the divided room — Now, the moving shadows of visitors, blurred images under lights … The atmosphere is like Purgatory, sad, joyful or museful.

路德维是一位非常细致、敏感而执著的艺术家，他的作品大多以装置的形式出现，比如：在湖边的空地上一个偌大的玻璃温室内，架设一块透明幕墙，再投上强烈的光线，然后再配上混杂的音乐，闪动的泡泡灯光混合着人为的烟雾，偶尔还会在分割的空间内撒上刺鼻的胡椒，置身于空间中，挪动的人影、靡然的灯光在模糊的视线中，犹如一个精神的炼场，或悲痛、或愉悦、或沉思。

Amongst the most popular were the fish carved and incised under the glaze of the classic Northern Song Ding wares, such as that carved in the interior of the large basin in the Percival David Foundation,23 and moulded on Northern Song or Jin dynasty Ding wares such as the dish with paired fish and lotus in the Idemitsu Art Museum, Tokyo.24 Fish also appear on popular wares such as the 12th century Cizhou wares with sgraffiato decoration, as seen on the famous pillow with catfish and eel grass in the Yamato Bunkakan Museum, Nara.25 They can also be seen on Southern Song celadon-glazed wares from the Longquan kilns, usually in the form of a pair of sprig moulded fish applied in relief under the glaze, as on a dish in the Percival David Foundation.26

最盛行的是著名的北宋定窑明刻和釉下暗刻鱼纹，诸如大卫珀西瓦尔基金会收藏的内底心雕刻的大盆，以及东京 Idemitsu 艺术博物馆馆藏的北宋或金代定窑盘子上的双鱼莲花造型。12世纪磁州窑的瓷器上也带有鱼的纹饰，正像在那件在奈良大和 Bunkakan 博物馆馆藏的著名的鲶鱼和蛇形鱼草瓷枕上所见到的那样。在南宋龙泉窑青釉瓷器上也同样可以见到鱼纹，通常是一对儿小枝造型的鱼以釉下暗刻浮雕的形式出现，正如大卫珀西瓦尔基金会一件盘子上所见到的那样。

Based on rail/wheel reaction and track/bride reaction theory and systems engineering theory, new vehicle-track and vehicle-track-bridge system dynamic models are established and discussed in details, including ballast track model and ballastless track model. The characteristics of the models are:(1) vehicle-track and vehicle-track-bridge system dynamic models are coupled in vertical and lateral;(2) track vibration on bridge is taken in account, track on bridge is considered as one or two layer continuous-point supported rail model, according to actual track structure, interaction between vehicle and bridge transfer from track structure;(3) three type of ballastless track models (tieembanked, elastic-tie-block, slab track) are presented;(4) models reflect the main feature of actual vehicle, track and bridge structure, the response computation frequency of models is relatively broad, which can be applied to analyze both low frequency and high frequency vibration.

基于轮轨相互作用和线桥相互作用特点，本文从系统工程角度出发建立了车辆、有碴轨道和无碴轨道、简支箱梁桥垂向和横向耦合系统动力分析模型，该系统模型具有以下特点：（1）车线、车线桥体系均考虑为垂向、横向耦合振动系统，车线间通过轮轨接触几何关系耦合，轨道与桥梁间通过轨道与梁体间的力与位移协调条件耦合；（2）充分考虑桥上线路在车线桥系统中参振作用，根据桥上线路轨道结构特点将桥上轨道结构模型具体化，即对桥上轨道结构视为多层支承体系，车桥间的动力作用通过轨道结构来传递；（3）建立了三种形式无碴轨道动力分析模型，即长轨枕埋入式、弹性支承块式和轨道板式无碴轨道模型；（4）系统模型详细，分析频带宽，适用范围较广。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。