概况

With the society Of city develobing ,the value of urban forestry become More and more affirmable and is taken care by every City in the world ,this paper excerpt the history of Urban forestry and the need of constructing urban forestry ,refer to concept ,category ang area of urban forestry ,introduce the condition of natural and environment,the situation of society and economy of nanning simply, summarize status of forestry resource in nanning, analyze and evaluate urban forestry in nanning about city afforestation ,timber structure,biodiversity ,comprehensive development of forestry ,and so on ,in according with investigation of Nanning citys afforestation in 2000,and suburban forest resource survey in 1999 ,and so on ,suggest the antidote of sustainable development according to the problem existing at present and develobment tendency of ecology ,second, bersist the orientation development of urban forest ,third,persist the principle of "the same three paces"and "the three unity",the last,change the affaire of managed department

随着城市社会经济的发展，城市林业的重要性越来越受到世界各城市的肯定并给予关注和重视。本文引述城市林业的历史以及建设城市林业的必要性，提出城市林业的概念、范畴及其地域范围，简要介绍南宁市城市自然环境条件与社会经济概况，依据2000年南宁市城市绿化普查及1999年南宁市郊区森林资源清查等资料，概述该市林业资源现状，并对南宁市城市林业的城市绿化、林种结构、生物多样性以及林业综合开发等进行分析评价，针对存在问题及城市林业未来的发展趋势提出南宁市城市林业可持续发展的对策：1加强生态文化宣传教育；2坚持城市林业的定位发展；3坚持"三同步"、"三统一"的方针原则；4转变经营部门职能，旨在为南宁市城市林业的建设和发展提供参考。关键词城市林业；城市概况；现状分析；可持续发展

In this paper, the world production of PUR industry is described,including raw material, production and consumption of PUR,technical advances of PU foam,such as chlorofluorocarbon substitution technologies, flame retardant PU foams and Polyurethane Reaction Injection Molding and development of domestic polyurethane industry.

本文叙述世界聚氨酯工业生产概况，包括聚氨酯原材料以及聚氨酯产品的生产和消费情况；聚氨酯泡沫塑料技术进展，如氯氟烃替代技术，阻燃聚氨酯泡沫塑料和聚氨酯反应注射成型，以及国内聚氨酯工业的发展概况。

The main research theme of this dissertation is sensor placement optimization and temperature measurement system in thermal error compensation of machine tools.

第一章，阐述了本论文的研究背景及重要意义，详细介绍了国内外机床热误差补偿的研究概况，侧重介绍传感器优化布置方面的研究，同时也介绍了温度测试技术及温度传感器的发展应用概况，概述了本文的研究内容。

Through the analyzing, we can know that the general situation of the retailing industry's internationalization in china and the reason of retailing industry's internationalization; we analyze the condition of the overseas retailing industry's internationalization and their general situation and the effect of the investment in china for consulting; we summarize the advantages and disadvantages of Chinese and overseas chain retailing company in domestic competing situations, then analyze, point out the advanced point of the overseas retailing industry and the lacking point of the Chinese retailing company; based on the contradistinctive analyzing, combining the trend of present retailing industry's development, we could make the developing strategy for the Chinese retailing industry in the future.

通过分析了解我国零售业国际化的概况以及零售业国际化的动因；为了具有参照性，对国外零售业的国际化状况进行分析，分析他们的概况以及在中国投资的影响；总结本土竞争环境下中国与外国连锁零售企业所具有的优势与劣势，进行对比分析，指出外国零售企业的先进之处和中国零售企业的不足；在对比分析的基础上结合当今零售业发展的趋势提出未来中国零售企业的发展对策。

In the text, first introduce the constitute, principle and characteristics of the cchp system which is a comprehensive energy system; in the following, overview the domestic development and the research situations of outside in this realm; immediately after, introduce in brief the research object"s engineering general situation and the design projects that be brought up aimed at this engineering in this text; then detailed discuss a kind of lately thermal economics cost absorption method- the method of share the cost of the product"s Exergy according to the ability class, and make use of this method and the product Exergy equivalence method and steam equivalence method to carry economics analysis to the design project respectively,and carry on the economy compared for the calculation of the several kind different cost absorption method from the point of view that the price of the energy Exergy.

文中，首先介绍了热电冷联产这一综合能源系统的组成、原理及特点；综述了国内外在这一领域的发展和研究概况；接着，简单的介绍了本文所研究对象的工程概况及针对本工程所提出的设计方案；然后详细讨论了一种新的热经济学成本分摊方法-按能级分摊产品火用成本法，并分别运用此方法和产品火用等价法、蒸汽等价法对设计方案进行经济性分析，从能量火用价格的角度对几种不同分摊方法的计算结果进行经济性比较。

First, we introduce general study about The desposition of troops of Cao Mo.

首先，我们介绍"上博四"《曹沫之陈》的研究概况，包括对简文排序情况和释字情况的研究概况。

Sum up in general the characteristics shared by HJH dialects and its internal differences by using the method of the traditional dialectology, with its emphasis laid on one focal place chosen from each of the four areas.

简要介绍杭嘉湖地区的人文概况和方言概况，杭嘉湖方言的研究情况，同时介绍本文的研究目的、对象、方法和材料来源。

Exterior capacitance science and technology used the electric field that builds along screen appearance, undertake feeling measuring from 4 horn, with determining user finger is put on face plate to cause the position of charge prediction of a person's luck in a given year.

概况电容科技采用了沿屏幕概况设立的电场，并从4个角进行感测，以测定用户手指放在面板上导致电荷流失的地位。

The first chapter is mainly about the general situation of folk vocal art forms in Hunan province, the general situation and the distribution of folk vocal art forms in Changde district, the main characters and the history of 'Changde Yugu' and the differences between Yugu forms in different places.

全文由绪论、结语和三大章组成：第一章主要介绍了湖南的曲艺概况、常德曲艺概况和流布、常德渔鼓的主要特征、历史沿革及与其他地方渔鼓的区别等。

In the first part of the dissertation,the basic knowledge of methanol market、toluene oxidation technology、the clear electrochemical organic synthesis technology and the solid superacid were introduced and reviewed.

本文的第一部分对甲醇的市场概况、甲苯催化氧化技术概况、清洁的电化学有机合成技术概况以及固体超强酸概况进行了文献综述。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。