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Using numerical calculation method, numerical solutions of hydrodynamic pressure distribution and vertical force caused by grinding fluid in grinding zone are obtained.

用数值分析方法，得出了砂轮磨削区内磨削液动压力的分布曲线和液膜举起力。

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Using difference method, numerical solutions of stress function of the discrete points can be obtained.

利用差分法可以求出自由扭转截面内各离散点应力函数的数值解。

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Yet, that is precisely what happens with numerical and statistical method: form is mistaken as substance.

FORBES: Manage Risk Like Robert Rubin