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中文摘要：
基础地理信息产品的现势性直接影响着其使用情况，如何快速获取现势信息，并应用于基础地理信息数据的生产是一项非常迫切和长期的工作。本文介绍了一种基于中、小比例尺地图数据补充生产大比例尺地磁要素的作业方法，详细描述了该作业方法的设计思路和作业流程，并讨论了作业流程中遇到的一系列技术问题，同时给出了相应的解决方法。经过实践检验，能够快速完成地磁要素的生产，是加速推进数字化建设的一种有效尝试。
英文摘要：
The currency of fundamental geographic products influences their use, how to quickly obtain information on the current situation, and apply the generation of basic geographic information data is an urgent and long-term work. The method for generate geomagnetic data of large scale topographic map based on medium and small scale topographic map was analyzed in the paper. It described the technical ideas and operation process of the method, and discussed a series of technical problems in operation process, at the same time gave the corresponding solutions. Practices proved that geomagnetism data could be generated quickly by the method, which would be an effective attempt to accelerate the digital construction.
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