它不仅节省了存贮空间，而且对空间对象的检索和历史事件的查询带来了方便。
It not only saves the storage space, but also is more convenient to retrieve an spatial object and quarry over a historical event.
该系统通过空间数据和数据接收属性信息的结合，实现了接收数据情况的直观显示和方便的查询检索。
By integrating the spatial data with the attributive data of received, this system can intuitively display data receiving information and easily query and search data as needed.
引入基于内容的检索方法，为使用户方便的根据特征或例子进行照片查询。分析和设计了人事档案管理系统中的照片的特征索引机制。
Using content based retrieval, design the photo feature index mechanism in a Personnel File Management System, which will offer users great convenience to inquire by feature or example.
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