提出一种基于伴随系统和变号系统的求解电力系统经典模型稳定边界上不稳定平衡点的方法。
A new method based on adjoint system and minus system to compute unstable equilibrium points on the stability boundary of power system classical model is proposed.
建立了管道泄漏引起的水力瞬变泄漏数学模型和边界条件，构造了差分方程。
Mathematics model and boundary conditions are proposed for hydraulic transient which is resulted from pipeline leaking while the difference equation is constructed.
模型将东亚大陆限定在一梯形边界框架之中，大陆岩石层被视为由幂指数律控制的薄层，它上伏在粘滞性较低的软流层之上蠕变流动。
In this model the EastAsia continent is limited in a trapezoid geological frame and the continental lithosphere is regard as a continuum thin plate with a power law rheology.
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