同时，可以在计算机屏幕上显示各阶段图层及相应的属性数据，可视性强。
Meanwhile, the coverages and their attribute can be shown in the screen, which strengthened the visibility.
农用地定级估价工作涉及到大量属性数据和空间数据的处理、统计、分析计算，是一项耗费人力、财力和时间的艰巨任务。
Farming land ranking comes within the scope of work on processing, analyzing and calculating tremendous amount of property data, which is costly, labor-intensive and time-consuming.
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