查询词典 three-wire system

As a result, it shows thatthe static or dynamic subsystem optimum alone is not equal to the system optimum. Three initial value problems met in the optimal design of flying vehicle are studied andconclusions are derived that: orthogonal test method can be adopted to decide the initial valueof static optimization problem, some mathematical techniques can be used to deal with thecostate variables of Maximum Principle and decide the initial value of the costate variable,the indirect method can be used to get the analytical solution under ideal case to guide thechoice of the initial control curve in the direct method. With some numerical examples oftrajectory optimization, it shows that all these methods are useful not only in accelerating theconvergence but also in converging to the global optimum.

针对飞行器优化设计中的三种初始值问题进行了研究，以远程弹道导弹弹道的工程优化为例说明，对于静态优化问题，采用正交试验法选取初始值，不仅可以大大加快收敛的速度，而且更有可能收敛到全局最优解；以气动力辅助变轨问题为例说明，用共态变量的一阶泰勒级数展开可以解决极大值原理中共态变量初值难于确定的问题；以二级弹道导弹的主动段弹道优化为例说明，利用间接法在理想情况下得到的解析解来指导直接法初始控制曲线的选择，将大大有利于提高直接法的收敛速度。

In part three, the author describes the present situation of the system of counterclaim in our country and analyses the reasons for that.

第三章反诉制度在我国的适用现状及原因分析，在这一部分，笔者从立法上、司法上、理论上三个方面介绍反诉制度在我具体适用的现状及存在的问题，并相应的从这三个方面探究反诉制度在我国适用受阻的原因。

At that level, the main difference of the system to provincial and prefecture levels is the callback counterfoil subsystem of certificates, seals and marks. The subsystem was divided into three levels from simple to intricacy.

县级证章标志管理与省级、市级明显不同之处是证章标志回收工作，该系统将回收子系统从简到繁在三个层次上对证章标志回收进行管理，满足对回收票据不同层次上的信息管理需求。

Chapter 2 strives to gain a clear idea of the prototype of the rural administration system before the transformation by way of reviewing the evolution of configuration and operation of rural public power from the Qin Dynasty to the disintegration of the People's Commune, comparing the three academic theories about the operation of our traditional rural country:"Country gentleman society","State community first society" and "Culture nexus of power".

第二章，追溯自秦汉确立乡制到人民公社解体这一历史长河中，乡村公共权力配置和运作模式的演变过程，比较学术界关于我国传统乡村公共权力运作的三种理论模式，即"乡绅社会"模式、"大共同体本位"模式及"文化网络"模式，力图弄清转型期以前的乡村管理体制原型，并根据"路径依赖"理论分析传统乡村公共权力运作模式对当代农村公共权力运作的影响。

The three level of government, which is province. county and town are classified as the scope of local government under present administration system.

1地方政府行政运行成本的概念成本是一个普遍的经济范畴，凡是有经济活动和业务活动的地方，都必然有成本的存在。

Fortunately, this summer I got the information ofXXX Courser from one of my friends by chance. I am interested in it very much and I think theXX course suit me. In order to help the international students adapted to the environment, the university set up the three semesters fast track system, small lecture and tutorial groups, extra study support.

一次偶然的机会，我了解到了XXX，我对它很感兴趣，而且XX的课程也很适合我，它是特别为国际留学生设立的，为了帮助国际留学生尽快适应大学的学习环境，学校还具有三学期制的捷径体制，小班授课，还有额外的课程辅导。

In the new century, China's accession to the WTO, for better and international practice, I plant a comprehensive reform of the old production, marketing, management system, more than 20 provinces and cities in the country and the establishment of the main agents collect sales, accessories and maintenance ' Three-in-one 'sales service network so that customers be assured that the sale of credit Shuxin user mode, so as to achieve' win-win 'objectives.

进入新的世纪，中国加入WTO，为更好的和国际接轨，我厂全面改革旧的生产、销售、管理体制，在全国二十多个省市与主要代理商建立集销售、配件、维修'三位一体'的销售服务网点，让客户放心，用户舒心的销售信用模式，以达到'双赢'的目的。

Analyse the tooth geometry of Klingelnberg Cyclo-Palloid spiral bevel gear.,according to the relative position and kinematic relation of the cutter heads,virtual crown gear and the processed wheel blank,established the system of coordinates of the gear cutting, dedcuced the tooth face equation of the virtual crown gear, according to relations of the gear cutting and space theory of engagement, deduced the tooth face equation of klingelnberg Cyclo-Palloid spiral bevel gear, and drawing the three-dimensional graphs of the virutal crown gear and Klingelnberg Cyclo-Palloid spiral bevel gear according to the design and setting parameters.

根据铣齿加工中刀盘、摇台和轮坯的相对位置和相对运动关系建立了切齿啮合坐标系，由矢量的旋转推导了产形轮齿面方程；根据空间啮合原理和切齿啮合关系推导了被加工齿轮的齿面方程；由设计参数和铣齿调整参数计算得到齿面离散数据，绘制了产形轮和摆线齿锥齿轮的三维齿形。

Research usejP.Haggett"s pattern of spatial structure and system, analysis technique of tourism market space and data of spot check to analyze the evolvement of spatial structure and problems of tourism development from six faces, move, path, crunode, significance of crunode, ground and diffuse. The law of the evolvement of spatial structure: First, tourism development keeps rising. Second, AR of xi"an is very big and stable, Xi"an is tourism hotspot and center. Third, origin market space sticks out east, and isn"t continuous. Fourth, tourist proportion of XAZ follows the low of distance decay. Distance decay is very obvious in adjacent zone because of little attraction. Sixth, the spatial distribution of tourist origins has become less concentrated. Tourist origins of east China develop quickly. Three problems: First, tourism development is very unbalance between Xian and its adjacent zone.

西安及毗邻地区的国内客源市场空间结构的研究，采用了英国著名地理学家哈格特描述的空间结构模式与秩序，利用旅游市场空间分析技术，借助市场抽样调查、数量分析，从运动模式、路径、结点、结点层次、地面和扩散6个层方面进行了剖析，归纳总结出5个客源市场空间结构演变规律：(1)旅游业发展整体保持增长趋势；(2)客源吸引半径大而稳定，西安市是全国性的旅游热点城市和旅游中心城市；(3)客源市场分布突向东部，呈不连续分布；(4)游客比重的距离衰减普遍存在，毗邻地区吸引物及自然吸引物吸引力较小，距离率减明显；(5)客源集中度减小，客源市场发展呈现跳跃式增长的演变规律。3个市场拓展面临的问题：(1)西安与毗邻地区间旅游业发展不平衡现象明显；(2)客源市场区位不佳；(3)旅游产品单一老化，类型单调乏味。

Basal synthem is the Taishan mountain group in archaean, is mainly the gneiss; The paleozoic synthem besides the regional lost stratas: Upper Ordovician, Silurian-Devonian and Lower Carboniferous, other stratas have the distribution, divides into Cambro-ordovician and Permo-Carboniferous two structure subgroups. Cambro-ordovician is a set of carbonate construction, Permo-Carboniferous system is a set contains the coal clastic rock deposition; In the mesozoic synthem lost Upper Triassic and Upper Crataceous ,growth Middle-Lower Triassic and Middle-Lower Jurassic and Lower Crataceous three structure subgroups, main growth varicolored land facies clastic rock, discovered rich fossil data such as cryptogam ,Ostracoda and Chareae and so on.

基底构造层指太古界泰山群，主要为片麻岩；古生界构造层除区域性缺失的上奥陶统、志留-泥盆系和下石炭统外，其余地层均有分布，分为冷武-奥陶系和石炭-二叠系两个构造亚层，冷武-奥陶系为一套碳酸盐建造，石炭-二叠系为一套含煤碎屑岩沉积；中生界构造层缺失上三叠统和上白垩统，发育下-中三叠统、下-中侏罗统和上侏罗-下白垩统三个构造亚层，为杂色陆相碎屑岩，发现丰富的孢粉、介形类、轮藻等化石；新生界古近系岩性以砂泥岩互层为主，含薄层油页岩，新近系-第四系为一套河流相沉积。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。