微通道内气泡生成机理受到通道几何尺寸、流体流动边界条件、流体物性等多种因素影响，过程非常复杂。
Affected by some factors, such as the channel geometry, fluid boundary condition and material properties, bubble formation process is complex.
本文将拱坝这样一种几何形状和边界条件都比较复杂的壳体结构划分为梁拱两组子结构，利用它们的一维模态建立动力方程求解振动问题。
A method is presented here for the dynamic analysis of arch dams by means of vibration modes of one dimensional arch and cantilever elements.
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