在计算中采用统计线性化方法和迭化法，将结果与线性情况作了比较。
Statistical linearization and iteration methods are used in the calculation, the results are compared with those of linear problem.
用主成分分析并绘制二维排序图，发现水稻二化螟、茭白二化螟交迭在一体。
Two dimension distribution figure was drawn by principal component analysis, which revealed that the striped stem borers overlapped.
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