用变距等高距选取了少量对划分草地类型界线、重要牧草分布界线、季节草地界线有重要指示意义的等高线。
A few contour lines which have significance to delineate the grassland types, the distribution of herbages and the seasonal grassland are chosen by using different contour intervals.
用变距等高距选取了少量对划分草地类型界线、重要牧草分布界线、季节草地界线有重要指示意义的等高线。
A few contour lines which have significance to delineate the grassland types, the distribution of herbages and the seasonal grassland are chosen by using different contour intervals.
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