The soil as of the study area was positive skew distribution, tally with second steps stable supposed, after Gaussian non-liner change.
结果表明，研究区土壤砷为正偏态分布，经高斯非线性转化后，符合二阶平稳假设。
2
The Mannesmann barrel-shaped rolls can be designed arid processed easily, but it makes the non-linear deformation zone in skew-rolling and leads to the inhomogeneous wall thickness.
曼乃斯曼桶形轧辊设计简单，加工方便，但形成非线性的斜轧变形区，导致壁厚不均。
3
Finally the algorithm based on the existence of non-ILP technical issues of statistical skew has been further optimization.