城市

Based on the Logistic equation and system dynamics, the models of passenger flow growth of urban rail transit in one line and in the whole urban rail net have been established.

以逻辑斯蒂方程为基础、系统动力学为工具建立单条线路及整个城市轨道交通网的客流量发展模型，通过分析影响城市轨道交通客流量变化的多个因素探讨城市轨道交通客流量变化的一般规律，对如何发展城市轨道交通提出建议。

Shanghai's opening as a treaty port affected and drove Jiangnan's modernized transformation. I try to explore the following five new topics and give my own explanation: First, Shanghai's opening as a treaty port caused the changing of city's structure and economic mode in Jiangnan area. Shanghai rose up abruptly and took the chair of core city which was hold by Suzhou and Hangzhou. At the meantime, being driven and affected by Shanghai several boomtowns came out.

上海开埠推动了江南社会在多个方面的近代化变迁，本文力求在以下五个方面作重点突破性的研究并得出独创性的观点： 1，上海开埠后引起了江南城市格局与发展模式的变化：首先是上海的骤然兴起并取代了苏州、杭州等原有的江南经济核心城市，其次是在上海的带动下相继兴起了一批新兴城市，引起了江南城市发展模式的变化。

Then urban development index was created to analyze its relationship with urban climatic index. It were seen that urban climatic indices correlated significantly with UDI and gradually ascend first before descend with the advance of urbanization process.

构建城市发展综合指标UDI与城市气候指标进行相关回归分析发现，城市气候指标与城市发展综合指标之间相关性显著，并表现为随着城市化过程推进先稳步升高后下降的一致规律。

In the northern city of Mosul, United States Army Rangers and other American Special Operations forces, highly skilled in urban combat, have killed or captured scores of the city's most tenacious guerrillas in unpublicized operations this year that have made it far easier for Iraqi troops to move through the city, which nonetheless remains dangerous and unstable.

在北部城市摩梭尔，美军突击队员以及精于城市作战的其他美军特种部队士兵已经杀死和捕获了大量这个城市中最顽固的武装分子，这些行动都是在今年进行的，并且这些行动没有被公开。这就让伊拉克政府军得以轻松开进这座城市。当然，这里仍然会有危险存在。

In china, it has been the government who has invested in, operated and managed the urban utilities. But due to the limitations of government's financial fund and the inefficiency of governmental investment, the supply of urban utilities has been insufficient which has influenced the improvement of urbanite's living standards and development of the city also.

长期以来，我国城市公用事业实行政府投资、政府经营和管理的办法，但由于政府财政资金的限制以及政府投资的低效率，导致城市公用事业长期处于供不应求的状态，影响了城市居民生活水平的提高和城市的发展。

Urban waterfront landscape directly affects the urban structure, urban ecological environment and the life quality of urban residents.

城市滨水景观直接关系到城市结构、城市生态环境及城市居民的生活质量。

Zhuhai City, Yue-hua Landscaping Construction Management Co., Ltd. was established in July 15, 2003, by the Zhuhai City Waterfront Park, the white lotus-Park, Jingshan Park, Xiangshan Park, Hill Park-cheung, the Fortress Hill Park, Institute of garden plants, garden nursery grounds, City sculpture studio, and other murals nine institutions of a merger with the reorganization of national landscape qualities of the two state-owned enterprises directly under the Zhuhai City Authority, the Garden City Management Office, Landscaping building, conservation and management of large professional firms, is responsible for the construction of parks, conservation and management in the urban landscape, landscape planning and design, landscape construction, urban design and construction of sculptures and murals兼营garden flowers, landscape and Technological Advice , The pleasure garden machinery and project management.

珠海市粤华园林绿化建设管理有限公司始建于二○○三年七月十五日，是由珠海市海滨公园、白莲洞公园、景山公园、香山公园、板樟山公园、炮台山公园、园林植物研究所、园林苗圃场、市城市雕塑壁画工作室等九家事业单位合并重组起来的一家具有国家园林绿化二级资质的国有独资企业，直属珠海市城市管理局、市园林管理处，是园林绿化建设、养护管理的大型专业公司，主要负责公园的建设、养护管理及从事城市园林绿化、景观规划设计、园林绿化工程施工、城市雕塑壁画设计与施工和兼营园林花卉、园林绿化技术咨询、园林机械及游乐项目的经营管理。

It is found that generally the bigger the cities, the higher the average per capita GDP and the average output of per square kilometers of a city, among which the cities with a population from 1 million to 2 millions have the largest agglomerative economy.

研究发现，基本上随着城市规模等级的提高，以人均国内生产总值衡量的城市第一经济效率和以单位面积产出衡量的城市第二经济效率都呈增加趋势，以100～200万特大城市经济效益最好。

Thus, urban gas load forecasting is an important research. It is a very important research task to forecast city gas load, for one hand, it will affect the planning of city gas pipe network, on the other hand, it is connected to the investment benefits and security of entire natural gas pipelines, and it's meaningful for urban gas optimizing attemperation and gas pipeline optimizing operation .

因此，预知燃气负荷的大小也就是城市用气系统的负荷预测是一项非常重要的研究课题，它不仅关系到城市燃气管网规划，还关系到整个天然气长输管线的投资效益和可靠性，对将来连接各城市的天然气局域网络的优化调度和城市燃气管网的优化运行都有十分重要的意义。

This American Experience series - produced to coincide with the 100th anniversary of the founding of the city - documents the often surprising and endlessly entertaining history of America's most outrageous playground - from its beginnings as a remote frontier waystation to its Depression-era incarnation as the "Gateway to the Hoover Dam," from its mid-century florescence as the gangster metropolis known as "Sin City" to its recent renaissance as the fastest growing city in the United States, Las Vegas, chameleonlike, has adapted its image to reflect the changing attitudes of the nation.

从一个巨型游乐场到一个真正有血有肉、活色生香的城市，拉斯维加斯在10年间脱胎换骨。每年来拉斯维加斯旅游的3890万旅客中，来购物和享受美食的占了大多数，专程来赌博的只占少数。内华达州这个曾经被人讽刺为&罪恶之城&和&赌掉工资&的赌城，已经逐步成熟，成为一个真正的城市了。1990年到2000年这10年里，拉斯维加斯的人口增加了80%，目前已经达到约190万。而这座城市的吸引力也慢慢变得多元化。这个城市不再是&赌城&的代名词。

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。