First the thesis elaborate the basis principles of land sustainable use , according to the natural and social economy situation , the characteristics of the land use , the aids and the principle of evaluation , we work out an index system form four aspects of productivity , protection , viability , acceptability . the weigh of indexes are defined by means of analytic hierarchy process , the standardization of indexes are defined by effective function , then , we use multi - aid decision model which mainly reflects that indictors influence on aim and multi - aid liner function which mainly reflects aim the degree of land sustainable use during 1996 and 1999 in taigu 论文从土地资源可持续利用的基本理论入手，结合太谷县的自然、社会经济状况与土地利用的特点，依据评价的目标和原则，从生产性、资源保护性、经济可行性、社会可接受性四个方面，采用专家咨询法建立了太谷县土地资源可持续利用评价指标体系，采用层次分析法确定了指标权重，应用功效函数法进行评价指标的标准化处理，运用反映评价指标因子对评价目标的影响程度的多目标突变决策模型和反映评价目标的可持续利用程度的多目标线性加权相结合的方法，对太谷县1996年到1999年的土地利用情况进行了评价。
So we have a problem , which is most urgent to resolve ? the economical feasibility of the construction program of the qingshan wind force power plant . the research of this thesis aims to discuss the economic character of qingshan wind force power plant through the analysis of baicheng ’ s geography and economical environment and combine with the national policy of exploring the renewing resources 本论文对青山风力发电场项目用电市场前景、投资及融资情况进行了系统分析,并就青山风电场项目建设所产生的经济效益和社会效益进行全面分析,以确定白城青山风电项目建设的经济可行性。
The technology for the construction of postal logistics distribution centers computer system , and its connections with networks such as postal integration network , 185 postal client server system , and goods flow client system , etc . are researched in more detail . finally , the network and its information safety strategy , economically feasibility are analyzed , and the construct methods for the efficient computer network flat are developed 论文还重点研究了邮政物流配送中心（ logisticsdistributioncenters ）计算机系统的技术架构，邮政物流配送中心计算机系统与外部网络（包括邮政综合网、 185邮政客户服务系统、物流用户计算机系统等）的信息交换方式，分析了网络及其信息安全策略，系统的经济可行性，提出了因地制宜搞好计算机网平台建设的方法。
The main frame of the paper is that : firstly , the paper provides the background of the project . secondly , the paper mainly analyses the investment project background of the shanghai demonstrable line of the maglev train . thirdly , the paper aims at the technological possibility of the shanghai demonstrable line of the maglev train 论文的基本框架为：第一部分，提出论文立项的背景；第二部分，着重分析了上海市磁悬浮列车示范运营线项目投资的背景；第三部分，着重论述了上海市磁悬浮列车示范运营线项目投资技术可行性；第四部分，着重论述了上海市磁悬浮列车示范运营线项目投资经济可行性；第五部分，分析了光大银行参与项目贷款的可行性。
By analyzing the basic data and methods of the maglev system in usa , including the economic research and the background , the estimate method of income and cost , the financial evaluation of the maglev system in different conditions , this paper introduces the economic feasibility of maglev system in usa , and holds that maglev shall be developed step by step in different regions , by taking the economic backgrounds and transportion of china into consideration 摘要通过介绍美国磁浮系统研究的有关基础数据和方法，包括研究背景、收入与成本的估算方法以及磁浮系统在单线和网络情况下的财务评价结论，对美国磁悬浮系统经济可行性研究进行了详细介绍。
This paper was written based on the research results about the evaluation study of the past people . the main analysis methods were quantitative analysis and qualitative analysis . it brought forward the target , the method and the principle of the synthetic evaluation study to the high - tech commodity from the macroscopic and microcosmic sides . it also established the evaluation index system and their calculating models from its market feasibility , technical feasibility and economic feasibility 本文在吸收前人的高新技术评价研究成果并弥补其不足的基础上，从微观和宏观两方面出发，采用定量分析和定性分析相结合的方法，提出了对高新技术商品进行综合评价研究的目标、方法及其原则，并且从高新技术商品的市场可行性、技术可行性、经济可行性三方面出发建立了评价指标体系及其测度模型，并进而对各指标进行了综合化处理并建立了综合评价模型，最后还对影响综合评价模型的各个因素进行了评价分析，并针对各个因素影响程度大小，提出了高新技术商品的投资策略。
Starting with resolving air - pollution in big cities in our country , this paper not only illuminates technical and economic feasibility of diesel - engine two - source heating ( air conditioning ) system , but also compares the advantages and disadvantages of several different heating ( air conditioning ) systems . then the potential of the diesel - engine two - source heating ( air conditioning ) system application is revealed 本文从解决我国大中城市的大气污染的问题入手，探讨了以天然气为燃料的双源供暖（空调）系统的技术经济可行性，并且比较了各种供暖（空调）系统的优劣，找出了内燃机双源供暖（空调）系统的应用潜力。
A working group for hong kong - zhuhai - macau bridge was set up in 2003 to coordinate the project and later the authorities from all three areas agreed to create a permanent office in canton and ordered an economic viability study , an environmental impact study and a report on the locations for placing the bridge ' s supporting pillars 2003成立了粤港澳大桥工作组来协调该工程，后来三方都同意在广东建立常驻机构，并要求做经济可行性研究、环境影响研究、以及一份关于桥梁支柱位置的报告。
In all , the sustainability of land use of taigu is on the basic development level , productivity and economic feasibility greatly influence on the land sustainable use , however , resource protection and social acceptability restrain its development . as a conclusion , some measures are put forward in this thesis 综合评价结果表明：近几年，太谷县土地利用处于基本可持续阶段，影响最大的是土地生产力水平和经济可行性，但目前主要制约因素是资源保护和社会可接受性，为此提出太谷县土地资源可持续利用的对策。
