The GVG system is a new solution, with the conception of sampling lineage instead of the traditional sampling point or sampling area, to extracting crop acreage information.
线采样系统提出以线状样区代替以往成数抽样中的点样区与面积样区概念，通过统计线状样区内作物种植面积成数来反映区域总体农作物种植面积成数。
The GVG system is a new solution, with the conception of sampling lineage instead of the traditional sampling point or sampling area, to extracting crop acreage information.
线采样系统提出以线状样区代替以往成数抽样中的点样区与面积样区概念，通过统计线状样区内作物种植面积成数来反映区域总体农作物种植面积成数。
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