受力超过峰值点，岩石发生突然破坏，瞬间释放出大量的能量，这一过程可以用灾变理论进行研究。
When the stress is over its peak value point, the rock will be suddenly destroyed and release a large amount of energy, a process that can be analyzed using the catastrophe theory.
针对边坡的滑移是一灾变问题，应用灾变理论建立了边坡稳定性的灾变模型，并结合实例，对边坡的稳定性进行了灾变分析。
Slope slide is a catastrophe. A model of slope stability is developed based on catastrophe theory and analyses of slop stability using the model are conducted with some examples.
它运用初等灾变理论中分岔的概念找出决定电力系统稳定的控制参数的分岔值，从而确定了系统的稳定区域，由稳定区域即可进行系统的稳定判断。
It applied bifurcation approach of elementary catastrophe theory to find out control parameters' bifurcation values, which decide stability of power systems, further, stability region can be obtained.
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