本文用量子力学导出了激光- DNA相互作用的运动方程，并分析了此方程之解所反映的系统之混沌态问题。
The Laser DNA interaction system motion equation was derived by means of quantum mechanics, and the problem of chaotic state of the system expressive the solution of this eq.
从自由涡运动方程出发，推导出管内流场的势函数和流函数方程，获得了管内流场的数学分析解；
Then basing on the free-vortex equation, potential equation and stream function of flow are achieved by mathematical analyze, and solving these equations gives flow fields.
研究和分析有阻尼单摆的运动方程，应用近似法方程时发现存在冲击波解并精确求解。
Studying the equation of motion of damped simple pendulum, the shock wave solution is found.
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