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Abstract: Basis on the current Chinese international economic situation, this paper discusses the problems that exist in the process of prompting Chinese Electronic Commerce, and puts forward some mostly bottlenecks that exist in the Chinese Electronic Co
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摘要:本文就我国电子商务发展的概况和特点，客观分析了现阶段在中国的电子商务发展过程中存在于技术、管理和安全等方面的一些问题，以及制约我国电子商务发展的几个主要瓶颈。 |
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Abstract: Basis on the research on the enterprises in Shanghai logistics services convergent zone, the author analyzes their development status and puts forth the countermeasure and suggestions for their further development.
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摘要：上海已建立了几个物流服务业集聚区，通过对区内企业的调查研究，分析了它们的发展状况，并对其进一步发展提出了对策建议。 |
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Abstract: Because of hard ground surface characters of big bulk densities, bare surface and be disturbed easily,the hard ground surface has its laws about sediment yield.
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文摘:硬地面由于具有容重大、地表完全裸露、易受人为干扰等特性，因而其产沙特性有其自身的规律。 |
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Abstract: Because of natural environment of drought、wind and sand as well as saline and alkaline soil,etc.,the original ecological balance is destroyed meanwhile,vulnerable ecological environment and unique landscape pattern are formed under blind reclama
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文摘:干旱区内陆河流域因其干旱、风沙及盐碱的自然环境，加之盲目开垦荒地、不合理利用水资源等人为因素的影响，改变了原有的生态平衡，形成了脆弱的生态环境和特殊的景观格局。 |
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Abstract: Because of so much deficiency in traditional manage ment mode of gas station, A gas station automatization information management sy stem is developed.
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文摘:传统的民航加油站管理方式存在进出油控制不准，不利于实时观测油位变化以及必须人工处理大量报表等一系列既不方便又不安全的因素。 |
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Abstract: Beginning from the characteristics of lead-bearing flue ash, thearticle systematically introduces the process flow and technology requirements of making use of lead-bearing flue ash to prepare lead monoxide.
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文摘:从含铅烟道灰的特点出发，系统地介绍了处理含铅烟道灰，制备一氧化铅的工艺流程及技术条件。 |
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Abstract: Beginning with a brief review of the evolution of American metropolitan region and the challenges of the Greater Chicago Metropolitan Area, this paper introduces 2040 Regional Framework Plan which NIPC launched on September 2005 with longterm fo
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摘要：本文在简要回顾美国大都市区在二战后的发展演变和大芝加哥都市区面临的挑战之后，从规划预测、规划过程、规划框架、实施战略等四个方面介绍了伊利诺伊州东北规划委员会2005年9月公布的大芝加哥都市区2040区域框架规划，对它所包涵的新规划理念和以社区为动力、公众广泛参与的规划过程进行了重点分析和阐述。 |
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Abstract: Beginning with the concept of public forests, this paper summarized the current situation, theory methods, representative evaluation and quantization models which are currently used in the research of ecological benefits evaluation and quantizat
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文摘:从公益林的概念入手，以生态学和经济学为理论依据，概述了目前国内外公益林效益计量评价的研究现状、理论基础、评价方法及典型计量评价模型，并对公益林效益计量评价中存在的问题以及今后的发展趋势进行了分析。 |
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Abstract: Beginning with the present situation of population explosion and the severe way of human bearing,this article concludes that the restriction of regeneration and the control to turn human seciety into sustainable development track;that the reprod
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文摘:从严峻的人口形势和生育方式的现状论述了节制生育、控制人口恶性膨胀是人类转入可持续发展轨道的首要条件，生殖调节成为生殖健康的核心问题，提出改进生育方式是21世纪的医学面临的一项重大挑战。 |
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Abstract: Being moderately well-off is a new phase for residents' consumption.
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文摘:居民消费由温饱到小康标志着消费进入一个新阶段。 |
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Abstract: Benzotriazole is a good corrosion preventive compound that can reacts with aldehyde and alcohol.The addition reaction is used to synthesize eight alkoxyalkyl benzotriazoles by benzotriazole,propionaldehyde and methanol,ethanol,propanol,iso-propy
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文摘:利用苯骈三氮唑、丙醛分别和甲醇、乙醇、丙醇-1、丙醇-2、丁醇-1、丁醇-2、2-甲基丙醇-1、2-甲基丁醇-2反应合成了八种烷氧基烷基苯骈三氮唑，通过元素分析、IR、1HNMR对上述化合物的结构进行了测定，并讨论了这类加成反应的历程。 |
