Then by using the qualitative analysis theory of nonlinear equation, a nonlinear dynamical mechanism of formation of binary stars is obtained.
应用非线性方程的定性分析理论，获得双星演化的非线性动力学机制。
To study the adsorptive mechanism and sliding frictional mechanism between the head and disk of the magnetic disk unit, a qualitative analysis theory is given in this paper.
本文提出了一种可以很好地解释在磁盘驱动器中头盘界面之间的吸附机理和滑动摩擦机理的理论。
Based on the nonlinear equations of the theory of density wave, the evolutionary direction and the observable conditions on spiral galaxies may be derived by the qualitative analysis theory.
基于密度波理论的非线性方程，用定性分析理论可导出旋涡星系的演化方向和由观测可得到的演化条件。
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