After introducing conception and mechanism of COM-GIS, the paper presents an example about querying information of land used status by MapObjects in details.
文中在阐述组件式GIS的概念和机制的基础上,较为深入地介绍了基于MapObjects控件实现土地利用类别信息查询的应用实例。
The principles of elastic wave technique are introduces as well as its application in rock mass quality assessment and field soil classification.
介绍了弹性波法的原理 ,并对其在评价岩体质量、划分场地土的类别方面的应用作了详细阐述 ,结合具体工程实例 ,指出弹性波法在工程勘察中有着极其广泛的用
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