本文利用需求函数曲线与供给函数曲线构成的所谓蛛网模型，对市场稳定性进行了定性分析研究。
The paper makes use of the model of spider web which was built by demand function curve and supply function curve and analyses qualitatively the stability of market supply and demand.
研究了层状边坡稳定性分析计算方法，提出了适合此类边坡稳定性分析的水平条分法。
This paper studied the computing method for the stability analysis of layered strata slopes and developed the horizontal slice method (HSM) for such slopes.
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.
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