The Derivative term when combined with proportional action improves control by sensing changes and correcting for them quickly.

导数项与比例作用结合在一起时，通过感觉变化和修正而迅速改善了控制。

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In many problems of mechanics and physics there frequently appears the differential equation with the derivative term of the highest-order containing small parameters.

在很多物理和力学的问题中常出现最高阶导数项带有小参数的微分方程。

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The factor of the mixed partial derivative term controls the grid orthogonality. The other two factors of second order partial derivative terms control the grid spacing.

结果表明 ：方程中混合偏导数项系数具有控制网格正交性的作用；

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Citi faces a fourth quarter filled with uncertainty about the value of its remaining mortgage-derivative holdings, related short-term debt conduits and the possibility of further deterioration in consumer credit quality.

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And perhaps to luxuriate a little in the improved long-term survival chances of a raft of rights to parody and create derivative works, which helps the Internet to do what it does best: make humorous videos which dance provocatively with copyright properties.

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