However, different levels of decision-making managers need different scales of land use map, so it's necessary to perform map generalization on large scale land use map.

然而，不同决策层需要不同比例尺的土地利用图，这样就很有必要对大比例尺土地利用图进行制图综合。

youdao

However, different levels of decision-making managers need different scales of land use map, so it's necessary to perform map generalization on large scale land use map.

然而，不同决策层需要不同比例尺的土地利用图，这样就很有必要对大比例尺土地利用图进行制图综合。

youdao