可以从任务输入和输出消息、任务自定义属性等途径取得上下文信息。

Context information can be taken from task input and output messages, task custom properties, and so on.

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通过本系统可进行矿业权属性信息的输入、存贮、查询、检索、浏览显示、输出以及对空间信息的查询分析功能。

This system have much functions, such as input attributes information, store info, inquire info, index info, view info and output spatial formation.

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论文还研究了地籍信息系统中的数据编码体系，图形数据和属性数据相互查询与混合输出的方法；

This paper studies the digital coding system in the cadastral information system; the method of querying and out-putting about figure data and attribute data;

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