摘要
本文研究一类非线性二阶中立型微分方程，得到了该类方程所有有界解的振动性判别准则，推广了一些已知的结果．
This puper discusses a class of nonlimear second order neutral differential e quations sufficient conditions are obstaned for all bounded solutions of the equations to be os cillatory,our condusions generalize some known results
