将硒指标线制作的等值线图与克山病病区分布图叠加后可发现克山病分布区域的边界与硒指标为3.0的等值线基本符合。
According to the overlaying out of isoline chart founded on Se index line and KSD endemic chart, a fact will be found that the border of KSD endemic basically answers for the isoline of Se index 3.0.
将硒指标线制作的等值线图与克山病病区分布图叠加后可发现克山病分布区域的边界与硒指标为3.0的等值线基本符合。
According to the overlaying out of isoline chart founded on Se index line and KSD endemic chart, a fact will be found that the border of KSD endemic basically answers for the isoline of Se index 3.0.
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