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根据乳源城区防护堤加固工程1∶500地形图测绘中取得的经验,提出利用数字化测图技术进行地形图放大更新是可行的,简要介绍该作业的过程与方法。
According to the experience gained in topography mapping of 1: 500 topography of the levee reinforcement project in Ruyuan City, it is feasible to enlarge and update the topographic map by using the digital mapping technology. The process and method of the operation are briefly introduced.