Conclusion the variable transformation can improve the power of test.

结论变量变换能有效地提高假设检验的效能。

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Two formulas for calculating any roll configurations of a rolling mill are derived by means of coordinate transformation and variable replacement from the cross rolling characteristics.

根据斜轧特点，利用坐标变换和变量代换方法，导出了两种计算任何斜轧辊形的公式。

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In general, Euler equation is solved by the method of variable transformation, but the procedure is complicated.

欧拉方程一般都是用“变量代换”法求解的，但其过程一般都比较繁琐。

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Although the nature of the transformation is still unclear, it will probably include more partnerships and outsourcing to turn fixed costs into variable costs.

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