... 较低阶有偏估计量 lower order bias estimator 较高阶系数 coefficient of higher order 较弱关系 weaker relation ...
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The Y-X correlation coefficient of a high order non - linear equation through mutation was higher than that of a simple linear equation by about 5 percent.
用权重方程产生的突变的高阶非线性预报方程，其y与X的相关系数比1阶线性方程提高5%左右。
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