Furthermore, the author gives the oscillation criteria of some partial difference equation with continuous variables.

此外，作者还给出了一类具有连续变量的偏差分方程的振动准则。

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In the second part, we mainly consider oscillations of solution of some linear and nonlinear partial difference equations with discrete variables and delays.

第二章主要是研究某些类型的线性或非线性的带有离散时滞的偏差分方程解的振动性的判别法。

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In fault simulating, two very similar models of worn gear have been considered with partial difference for evaluating the preciseness of the proposed algorithm.

在故障模拟中，两种非常相似的磨损齿轮类型被视为以偏差来评估该算法的严谨性。

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