特大城市的

Most of them have concentric space structure with single-center whose disadvantages have been more and more evident with accelerative development of urbanization.

我国大城市及特大城市的空间结构形态大都为单中心的同心圆结构，在城市化进程加速和城市规模不断扩大的情况下，这种结构的弊端已越来越明显。

The urban old area has been highly redeveloped in recent years, and it brings increasingly extrusive transportation problems, especially in the big cities.

近几年城市旧区改造高强度开发，新区建设规模扩大，由此带来的交通环境问题日益突出，在大城市和特大城市尤其如此。

The conclusions of this paper are following : The towns around the megalopolises closely and on the major development direction of megalopolises will dissolve in those megalopolises, then become the new function notes of megalopolises; Towns around megalolises will evolve the satellite towns generally ,and take on the industry and population shifting from the centre of major cities.

得出的结论是特大城市周边紧密圈层的小城镇和特大城市主要发展方向上的小城镇会逐步溶入特大城市，成为特大城市新的功能节点；特大城市外围的小城镇将会逐步演变为特大城市的卫星城镇，承接特大城市需要从中心城区转移出来的产业和人口。

Beijing, Guangzhou, Chengdu and other mega-cities of the suburbanization process, traffic problems have been seriously restricted.

北京，广州，成都等特大城市的郊区化进程中，交通问题已严重制约。

This paper analyses the characteristics of urban system in Anhui Province. It is found that this region exhibits a city-size distribution following the rank-size rule. The urban primacy index is low, the scale effect is inevident, the urban scale is small in whole, the development of metropolis and big cites is not enough, medium-sized cities is prominent and the spatial distribution of cities is not equal.

运用统计数据，在深入分析的基础上，发现安徽省现状城市体系的等级规模结构呈位序—规模分布；城市首位度偏低，规模效应不明显；城市规模总体偏小，特大城市和大城市发育不足，中等城市突出；城市规模空间分布不均衡，区域分异明显。

It is found that this region exhibits a city-size distribution following the rank-size rule. The urban primacy index is low, the scale effect is inevident, the urban scale is small in whole, the development of metropolis and big cites is not enough, medium-sized cities is prominent and the spatial distribution of cities is not equal.

运用统计数据，在深入分析的基础上，发现安徽省现状城市体系的等级规模结构呈位序－规模分布；城市首位度偏低，规模效应不明显；城市规模总体偏小，特大城市和大城市发育不足，中等城市突出；城市规模空间分布不均衡，区域分异明显。

Secondly, the framework of megacity—one core and double stars emphasizes the downtown development and also directs the spatial expansion.

第二，特大城市的框架——一核双星，突出了中心城的发展，也为无锡远期城市扩展预留了空间。

Taking Wuxi City as an example, with the help of the basic theory and practice of urban industrial distribution and its adjustment of megacities at home and abroad, the dissertation studies the basic pattern of industrial distribution and its adjustment in the transition period from big city to megacity during the fast urbanization.

本文以无锡市为例，从国内外大城市产业布局的空间结构基本理论研究入手，借鉴国内外特大城市发展过程中空间结构调整的基本经验，结合无锡市的实际，研究了我国在当前快速城市化过程中，大城市向特大城市发展的转型时期，特大城市的产业空间布局及其调整的基本思路。

This dissertation presents an urban perspective towards mega-event management by building a new urban-brand-oriented management frame of mega-events.

本文从城市的角度来审视特大活动管理，以城市品牌为导向来构建特大活动的新型管理框架。

As for the management process, this dissertation integrates mega-events in urban development by combining them with urban management. From the perspective of time, it takes into consideration both the facts that a mega-event is once for all and that a mega-event is a process; from the perspective of development, it takes into consideration both the input influences and the output results of mega-events; from the perspective of systemic development, it takes into consideration both the operationof mega-events and the interactive influence between mega-events and the environment.

在管理过程上，本文将特大活动有机地融入了城市发展，有机地结合了城市管理，从时间发展的角度，既考虑了特大活动的一次性，又考虑了特大活动的过程性；从活动发展的角度，既考虑了特大活动的输入影响，又考虑了特大活动的输出结果；从系统发展的角度，既考虑了特大活动的事件运作，又考虑了特大活动与环境的互动影响。

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。