应用非线性系统的定性理论方法，对一类军事竞争系统进行了定性分析，研究了系统平衡点的性态，证明了系统在全平面不存在闭轨线。
The paper is devoted to nonlinear analysis of a military contest system. The nature of equilibrium points is studied. The nonexistence of closed orbit in real plain is proved.
首先对昆玉河斜拉桥做了动力模态分析、反应谱分析、主塔及全桥稳定性分析等常规分析。
Firstly, Routine analyses such as dynamic modal analysis, response spectrum analysis, buckling analysis were used to analyze the bridge.
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