影响多中心的

The paper brifly introduces a design calculation method, for opening the cabin and throwing bomblet s by explosion of explosive in the central tube in bomblet type warhead in this paper.

介绍了子母战斗部中心药管爆炸开舱的设计计算方法；在分析了诸多参数变化将产生的不同影响后，指出了各相关设计参数的具体选择原则。

The influence of position of the substitution, strength and number of donors and acceptors, and their coplanarity and asymmetry is discussed. The results indicate that the molecules may have larger first hyperpolarizabilities when the molecules have stronger and more donors and acceptors, large asymmetry of HOMO and LUMO, better coplanarity and higher accentricity. This work attemps at finding out the relationship between the structure and the property, thus providing theoretical basis for designing nonlinear optical molecules.

进一步研究体系中取代基的位置，给体与受体的数量和得失电子的能力，分子的共面性和对称性对分子第一超极化率的影响，结果表明，有机分子拥有更多数量与更强得失电子能力的给体和受体，最高占据分子轨道和最低未占据分子轨道空间分布的不对称，具有较高的原子共面性和较低的分子中心对称性，都能显著增加

More than 10 years, I heard the company's customers valuable advice and technical absorption silk gun manufacturers, continue to improve, accumulated experience in various aspects, such as: absorption of silk Qiangtou, brothers and ceramic manufacturers have adopted easy Pengsui suction head, will not only affect production , Also increased equipment costs, we head into metal and greatly reduce the cost, a further absorption silk guns into the trachea and the row of silk from the centre, other manufacturers in 36 mm, and we changed to 38 mm, for users to replace the intake manifold, Pai more convenient when the silk, silk guns in the absorption of the two guns, made the point that hole, so it's suction row wire was also larger, users have won, we Asia and China over the years the company pursues " Is the quality of corporate life, the user is God, reasonable prices, better quality,"the purpose, we now more than 100 domestic and chemical fiber enterprises have long-term business, the company specializes in chemical fiber processing machinery parts.

十多年来，我公司听取了用户的宝贵意见，在吸丝枪制造技术上，不断改进，积累各方面经验，如：吸丝枪头子，兄弟厂家都采用陶瓷吸头容易碰碎，不但影响生产，还增加设备费用，我们改成金属头子，大大降低了成本，再有吸丝枪的进气管与排丝管中心距离，其他厂商于36mm，而我们改为38mm，为用户在更换进气管、排丝管时更为方便，在吸丝枪内的二级喷头中，孔的角度作了修正，所以它的吸力排丝量也较大，得到用户的好评，我们亚华公司多年来奉行"质量是企业生命，用户是上帝，价格合理，质量更优"的宗旨，目前我们与国内一百多家化纤企业有着长期业务往来，本公司专业加工化纤机械配件。

Under the cases of the linear interconnected systems with all its subsystems are one dimension, a theorem to judge the properties of single loop interactions has been given; the study also indicated that the properties of interactions cann't independent of the properties of subsystems in the multi-loop interaction conditions, and a all field root locus method has been proposed to decide the properties of interactions; a interaction stabilizable theorem has been given, and the efficacy of interactions with respect to the interconnected systems has been configured, Some primary results are reported which are induced by using a method of computer aided test to study block interactions, the stationary feedback efficacy of closed loop interactions have been discussed and a stability guess has been proposed.

本文提出互连系统的合作稳定性概念及其原理，给出了互连系统的本原稳定度、稳定中心、回路关连的级数以及关连的性质等基本定义；并在此基础上对线性互连系统进行关连分析，给出了一系列涉及到关连与互连系统稳定性关系的命题、引理、定理及其证明；其中，在子系统都是一维的线性定常互连系统情况，得出了单回路关连性质判断的定理；并指出在多回路关连条件下，关连的性质不能独立于子系统的性质，以及用全域根轨迹法判断关连性质的方法；给出了关连可稳定理，并对关连对互连系统的影响作用进行了分析。本文还用机辅试验的方法研究块阵关连并给出一些初步结果，本中还探讨了回路关连的静态反馈作用并提出一个判稳猜想。

Shanghai is the biggest multi-function and economic center city in China , which developing up to now is still the extension and extensions of the modern city,. The part urban of Puxi in some meaning basic keeps the then feature. The people are still living in the city that is shaped in 19-20 centuries. Its history will give the city with deep, affect farsightedly.

上海作为中国最大的多功能经济中心城市发展到今天仍是近代城市的延伸和扩大，浦西相当部分的城区还基本保持着当时的面貌，人们依然还生活在这些19-20世纪形成的城市中，其历史将给予城市以深刻的、长远的影响。

The first part is preface, on the basis of expounding the background, the purpose, the meaning and the thinking of the thesis study, briefly introduce the research achievements of domestic and international urban spatial structure; the second part is summary, expatiate on the connotation, component, research span and space type of urban spatial structure; The third part is theory foundation, mainly introduce the three classical models of city spatial structure in the west country (concentric circles mode, fan-shaped mode and multi-core mode) and the relative city development theories (growth pole theory, dot-axis theory, core-fringe theory, metropolis circle theory and city space evolution theory); The fourth part is general situations of study region; The fifth part is the analysis of Lanzhou city spatial structure evolution, along the historical venation Of city development, on the basis of analyzing industrial structure change, focus on and sumup the characteristics of spatial development and form, meanwhile, analyze factors which influences the spatial development; The sixth part is the analysis of Lanzhou city spatial development trend, put forward the development models of Lanzhou city spatial structure from three space aspects(the core city, the city, region) in the future, they are group gobbet structure, fingers structure, circle structure; The seventh part is to mainly put forward the development strategies for the different spatial structure models.

第一部分为前言，在阐明论文研究背景、目的及意义、思路的基础上，简要介绍了国内外城市空间结构相关研究成果；第二部分为概述，对城市空间结构的内涵、组成要素、研究尺度及其空间类型作以介绍；第三部分为理论基础，主要是对西方城市空间结构的3大经典模型(同心圆模式、扇形模式和多核心模式)以及与本研究相关的城市空间发展理论(增长极理论、点轴理论、核心——边缘理论、都市圈理论和城市空间演化理论)的介绍；第四部分为研究区概况，主要是对研究区域范围的界定及其社会经济发展概况介绍；第五部分是兰州城市空间结构演化分析，顺着兰州城市发展的历史脉络，在分析产业结构变动的基础上，着重对城市空间发展及其形态特征进行归纳总结，并分析了空间发展的主要影响因素；第六部分是兰州城市空间发展趋势分析，从中心城市、市域、区域3个空间层面上提出未来兰州城市空间结构的不同模式，即组团结构、指状结构、圈层结构；第七部分是城市空间发展策略，针对不同的城市空间发展模式提出一些对策建议。

We have been affected by the recession and this year I've seen more property available than ever before but the naturist centre is unique and therefore the prices are still around 20 per cent higher than on the non-naturist side of the village.

我们受到了经济衰退的影响，今年可供租售的房屋比以往任何时候都多，但裸体主义者中心区域有着独一无二的地位，因此其价格仍比非裸体主义者区域高出20%左右。

The Multicenter Osteopathic Pneumonia Study in the Elderly was a registered, randomized, controlled, double-blinded, clinical trial that sought to assess the impact of adjunctive osteopathic manual medicine techniques in the treatment of patients over the age of 50 who were hospitalized with community-acquired pneumonia.

骨科的肺炎多研究老年是一个注册中心，随机，对照，双盲临床试验，力求产生的影响进行评估人工辅助骨科医学技术治疗50岁以上的住院谁社区获得性肺炎。

We started with a redesigned graphite chassis, now flat-fronted with twin mini-bumpers for impact-damage resistance, and with tweak reference center holes already drilled in. The steering servo mounts are all new Factory Team blue aluminum items with multiple mounting points to fit most servos.

我们已开始与一个重新设计的石墨底盘，现在平板门前双迷你保险杠影响损伤的抵抗力，以及与调整的参考中心孔已钻英寸督导伺服装置都是新厂队蓝铝项目与多个安装点最合适的伺服。

The results indicate: by using the marginal characteristic of area array CCD images after wavelet transforming, the photograph height of aerial camera can be fixed automatically and auto foucsing can be realized; by...

结果表明，利用面阵CCD图像小波变换后的边缘特征，可自动确定航空相机的摄影距离，并能实现相机的自动调焦；通过改变CCD中心区域的大小，可以排除地面上多个相同目标的影响

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐