4 ) numerical simulation running of surface runoff shows simulation results presented the general features of surface runoff generation , and certain efficiency . after adjusting the input parameters , the simulation results show a good meet to the observed data 4 ）表面径流的数值模拟能揭示表面产流的一般趋势，而且有一定的有效性，通过调整模拟输入参数，能使模拟达较理想程度。
The measure instrument of children ' s social perspective - taking ability was laid down firstly . on this basis , the study chose 41 first - grade students in primary school and made a research about the general developmental trend of children ' s perspective - taking ability and the factors that may influence the development of this ability 本研究首先制定了儿童社会观点采择能力的测量工具，并在此基础上，选取小学一年级41名学生，对其观点采择能力发展的一般趋势和可能影响儿童观点采择能力的因素进行了研究。
The main conclusions of this part are as follows : ( 1 ) over the long period of industrialization of the developed countries , trade , transportation and finance play an important role , these services developing complementing industry ' s increasing and market deepening . ( 2 ) tertiary industry ' s output proportion ( of gdp ) negatively correlates to the traditional services " output proportion and positively correlates to the contemporary services " proportion ( within tertiary industry ) 第二，第三产业内部结构演变的一般趋势体现为：伴随现代经济增长进程的深化，第三产业占gdp比重与传统服务业(包括商业与运输仓储)占第三产业的产出比重负相关，与现代服务业(包括金融保险、房地产、商务服务)以及和人们身心素质、生活水准提升关系密切的服务业(包括教育医疗、文化娱乐)占第三产业的产出比重正相关。
Beginning with the relating basic concepts , the paper analyzed the general trends of rural industrial structure ' s changing : agriculture ratio decrease , agriculture modernization , rural industrialization , etc . based on those , the paper has discussed chinese rural industrial structure ' s history , present , characteristics and reasons that it comes into being 本文从相关基本概念入手，分析总结了农村产业结构变动的一般趋势，将其归纳为农业份额下降、农业现代化、农村产业结构非农化等。在此基础上，讨论了中国农村产业结构的历史、现状、特点和成因。
Based on the analyses of the first three parts , in part four , the author further discusses the internal structural evolution of china ' s tertiary industry in the period of reform and open and contrasts the structure with that of the same income developing countries . the author discusses the causes and effects of the evolution and structural differences and then puts forwards the idea of the internal structural improvement of china " tertiary industry and the policies and measures for that 第四章深入分析我国改革开放以来第三产业内部结构的演变趋势及其与相近发展水平发展中国家的差异，剖析其成因与影响，并依据我国“十五”时期和二十一世纪初期经济发展的时代背景与发展态势以及第三产业内部结构演变的一般趋势，提出我国第三产业内部结构调整、优化的政策建议，最后，拟合了我国第三产业内部结构模型，预测2010年与2 ( ) 20年我国第三产业分支行业的比重。
The article consist of three chapters . in the first chapter , the author introduces the concept of the internal structure of the tertiary industry > research object , research methods and the classification of the tertiary industry , and the main factors which influence the internal structure of the tertiary industry , and the international law of the changes of the internal structure of the tertiary industry which based on the positive analysis . in the second chapter , the author makes a positive analysis of the changes of the internal structure of the tertiary industry in china . firstly , the author reviews the trend of the tertiary internal structural changes in china in the past 50 years , from four aspects including output structure > labour force structure - 本文主要研究中国自建国以来的第三产业内部结构的演变规律，并与国际第三产业内部结构变动的一般趋势相比较，从而发现我国第三产业内部结构存在的问题，并针对这些问题提出相应的政策措施。全文共分为三章。第一章：讲述第三产业内部结构的概念、研究对象及研究方法，以及第三产业的内部划分，影响第三产业的主要因素，国际上第三产业内部结构演变的一般规律，并进行了实证分析。
Then it makes a general analysis on the current status of urbanization in the northeast and the development trends of urbanization in the world and gains following inspirations : first , industrial agglomeration is an important factor to promote the process of urbanization in the northeast ; second , the positive development of central cities in the northeast is the inevitable choice at this stage ; third , technological progress and innovation is the key to achieve competitive advantages ; fourth , effective institutional arrangements and policy innovation can give play to the effect of industrial agglomeration and accelerate urbanization process 然后对东北地区城市化的现状以及世界城市化发展的一般趋势进行了系统分析,得出以下启示:第一,产业集聚是推动东北地区城市化进程的重要因素;第二,积极发展中心城市是东北地区现阶段城市化的必然选择;第三,技术进步与创新是取得竞争优势的关键;第四,有效的制度安排与政策创新能够发挥产业集聚效应并加速城市化进程。
