The existence of saddle-node bifurcation is verified.
证明了系统存在鞍结点分支。
It is shown that the model undergoes saddle-node bifurcation and Hopf bifurcation.
该模型经历了鞍结点分支和霍普夫分支。
The results show saddle-node bifurcation arises in the turning point of amplitude-frequency curve.
研究结果表明幅频曲线转折点出现鞍结分叉。
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