本文用不同于原有文献的方法研究了一类偶数阶中立型非线性微分方程的振动性，得到了方程振动的几个新的充分条件。

In this paper, we consider the oscillation of a class of even order nonlinear neutral differential equations, some new sufficient conditions are established.

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研究一类具有连续分布滞量的偶数阶非线性中立型泛函微分方程解的振动性，得到了该类方程的若干新的振动准则。

We study the oscillation of solutions for a class of even order nonlinear neutral functional differential equations with continuous distributed delay.

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激励信号之间具有很强的相关性，且相关程度主要由偶数阶激励信号产生；

Experimental results show that there is high correlation between excitation signals, and the correlation degree rely heavily on even signal.

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