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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再以同一金属模型为母模，应用玉洁新消毒液调和藻酸盐印模材料制取10个印模，以超硬石膏灌模，比较石膏模型与母模之间指标线段长度差异。

Copied the same metal model and 10 impressions were taken in the same way. They were poured in dental stone, comparing the length divergence between dental stone plaster with the impression.

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