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

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。

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

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。

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The oscillatory criteria of even order nonlinear neutral delay differential equations are studied. The results obtained extend several results in known literature.

研究一类非线性的偶数阶中立型时滞微分方程，得到了该类方程解振动的几个新的判别准则，得到的结果推广了已有文献中的结果。

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