Basic knowledge of analytical reagents& salts The salty coffee Vertical Changes of Nutrients in the Sediments of Urban Lakes in Guangdong 广东城市湖泊沉积物营养盐垂直变化特征研究
The basic characteristics of the beach resources of the three big lakes in the middle-lower Yangtze River region and their exploitation and utilization 长江中下游三大湖泊滩地资源的基本特征及其开发利用
Calculation of the flow resistance is also the basic problem in dredging engineering of rivers, lakes, harbors and waterways. It is an important factor to the design of the sand transport system, because it directly determines the choice of power drives and operation cost. 管道输沙阻力损失计算也是江河湖泊、港口航道疏浚工程中的一个基本问题,它是设计输送系统的重要参数,直接关系到动力设备的选型和运行的能耗。
Synthetic methods and application of basic magnesium carbonate in the world are discussed in this paper, aiming at proposing a method for exploiting and utilizing magnesium resources of salt lakes. 介绍了国内外碱式碳酸镁主要合成方法及应用,并对其中存在的一些问题进行了探讨,旨为盐湖镁资源的开发利用提供一条途径。
Finally, the authors suggest that we should strengthen multidisciplinary comprehensive research and establish a basic database of Chinese lakes in order to provide a basis for the sustainable development of lake and wetland research. 最后提出加强多学科的综合研究,建立中国湖泊基准数据库,为探讨湖泊湿地的可持续发展提供依据。
Proportion and Basic Properties of High Strength Concrete Used in Salt Lakes 盐湖地区高强混凝土的配制技术和基本性能
The thesis analyzed basic questions, such as the current level of lake and urban lake in abroad and home, forming, characteristics, lifecycle, classification, origin cause of lake resource in our country. It researched on the different characteristics between urban lakes and lakes. 分析我国对湖泊及城市湖泊的研究现状与水平,国外对湖泊开发利用的理念;研究湖泊的形成、特点、生命周期及城市湖泊的特点和我国城市湖泊资源概况等基础问题。