The nonlinear resonant and non-resonant periodic solutions are obtained by the small parameter methods.

然后用小参数法求出了非线性的非共振周期解和共振周期解。

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The nonlinear resonant and non-resonant periodic solutions are obtained by the small parameter methods.

然后用小参数法求出了非线性的非共振周期解和共振周期解。

youdao