This method opens up new function and application range for common map projections. Systematical results and applications have been obtained.
该研究开拓了常用地图投影的功能和应用范围，获得了系统的理论结果和应用实例。
A new kind of variable scale projection is obtained. This method opens up new function and application range for common map projections. Systematical results and applications have been obtained.
该研究开拓了常用地图投影的功能和应用范围，获得了系统的理论结果和应用实例。
In this paper author concisely summarizes a few common map-projection transforms and the result conversion of geodetic survey and gives their computer algorithm and the source program.
文中简明扼要地总结了几种常用的地图投影变换和大地测量成果转换，并给出算法及实现步骤，供作图人员参考。
In this paper author concisely summarizes a few common map-projection transforms and the result conversion of geodetic survey and gives their computer algorithm and the source program.
文中简明扼要地总结了几种常用的地图投影变换和大地测量成果转换，并给出算法及实现步骤，供作图人员参考。
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