本文给出了复杂边界条件下任意形状板的自由振动分析的一个新的解析解法。
This paper gives a new analytical solution of the free vibration of an arbitrary-shaped plate with complex boundary conditions.
分别用矢量图解法和积分法导出了菲涅耳圆孔衍射中心场点的光强的解析表示，方便了此类问题的分析。
An analytic expression for the intensity of the central point in Fresnel's circular aperture diffraction was derived using the methods of vector map and integration respectively.
在进行湿天然气管道瞬态分析时，采用了解析法和数值解法进行求解。
In the process of analyzing the transient state of wet nature gas pipeline, the analytic and numerical methods are adopted to solve the equations.
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