At the same time difference that peaking temperature and the peaking area was due to their different purity.
其中的出峰温度、峰面积的差异是由于它们的纯度不同所致。
2
The optimum technological conditions were determined by orthogonal test and extreme difference analysis. The yield of product reaches over 80%, and the purity is up to 94%.
通过正交设计及极差分析法确定了最佳工艺条件，产品收率达80%以上，纯度可达94%。
3
The properties of zinc, lead and copper bearing polymetallic are complicated. The difference of the ore's purity is large. And there are carbon gangues in the ores.