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Abstract: This paper systematically analyzed the problems of air pollution,the variety of pollutants and their harms to mankind and environme nt,pointed out that air pollution was one of main factors to inhibit city's sust ainable development,described th
中文意思:
文摘:本文系统分析了城市空气污染的成因、污染物种类和危害,指出城市空气污染是制约城市可持续发展的关键因素之一,提出了城市空气污染防治的技术和非技术措施。


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Abstract: This paper summarizes a series of tests and inve stigations on general layout,const ruction diversion,flood disposal,navigation,river closure,form of gate opening s ection,pattern of energy dissipation and scouring under sluice carried out for F 文摘:综合阐述了珠江水利委员会科学研究所从1983—1998年间对飞来峡水利枢纽的整体布置、施工导流、泄洪、通航、截流、闸孔断面形式、闸下消能形式、闸下冲刷等所进行的一系列试验和研究工作,并介绍主要试验研究成果。
Abstract: This paper summarizes flux-gate phenomenon and its composition,and concretely introduces the principle,circuit and applying method in guidance system of pendulum biaxial flux-gate compass. 文摘:文章概述了磁通门现象及磁通门系统的构成,具体介绍了二轴磁通门、罗盘的原理、电路及在导航系统中的应用方法。
Abstract: This paper summarizes the studies on mercury pollution of soil. 文摘:对国内外学者近些年来对土壤汞污染研究的工作进展作了系统的综述。
Abstract: This paper summed up the present actuality of was gourd production and research progress in wax gourd breeding and so on, analyzed the primary problems in wax gourd production and study, and discussed the developmental trend and breeding directi 文摘:综述了冬瓜生产现状以及国内研究状况,并分析了目前冬瓜生产及研究中存在的主要问题,对未来冬瓜的研究、育种方向及发展趋势进行了展望。
Abstract: This paper sums up characteristics of Au anomalies within Tertiary red clastic beds in a certain area of Qinghai Province,and points out that Au anomalies mainly exist in the middle part of the Tertiary strata, that anomalies are most strong in 文摘:对青海某地第三系红色碎屑岩层中的金异常特征进行了综述,指出金异常主要存在于第三系中段岩层中,异常在水系沉积物中强度最大,并认为金异常由次生富集作用形成。
Abstract: This paper systematically analyzed the problems of air pollution,the variety of pollutants and their harms to mankind and environme nt,pointed out that air pollution was one of main factors to inhibit city's sust ainable development,described th 文摘:本文系统分析了城市空气污染的成因、污染物种类和危害,指出城市空气污染是制约城市可持续发展的关键因素之一,提出了城市空气污染防治的技术和非技术措施。
Abstract: This paper takes the manufacturing of non-circular gear as an example to analyze the non-circular gear's tip curve error influence upon it′s contact ratio which is manufactured by involute cylindrical shape cutter, and it provides a theory basis 文摘:以非圆齿轮插齿加工为例,分析了利用渐开线圆柱插齿刀加工非圆齿轮时齿顶曲线误差对非圆齿轮重合度的影响,为严格控制非圆齿轮副的重合度提供了理论保证。
Abstract: This paper talks about the methods of solving the “ the three  agriculture ” problems mainly from the aspects of the process of agricultural industrialization, adjustments of agricultural industry, input of more rural fund and promoting urbaniz 摘要:加快农业产业化进程,调整农业产业结构,增加农村资金投入和推进农村城镇化是解决“三农”问题的重要途径。
Abstract: This paper targets at the direction of the general development of Guangzhou through analyzing its urban history, status quo and discusses the urban industries, population, land use, spatial structure, transport system as well as the policies on 文摘:提出了广州市城市发展的总体目标与定位,并在充分分析发展历程、现状特点的基础上,就广州市城市产业、人口与土地、空间结构、交通运输网和生态环境的发展趋势及对策进行了讨论。
Abstract: This paper tries to improve and research on the railway signal relay locking,and especially deals with its technicality and safety. 文摘:文章是关于传统铁道信号继电器联锁方式的计算机改造与研究,从技术性、安全性等方面进行了探讨。
Abstract: This paper tries to put forward a long-term and a stable development target for the city of Guangzhou based on the scheme of concept planning come out of the common views contributed by five consulting units. 文摘:结合规划咨询以后广州市城市建设形势的发展,试图提出广州市未来较长时间内比较稳定的城市空间发展目标,深化并形成广州市长远发展政策框架,从思想和方法上把可持续发展落到实处。
 
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