边界条件对耦合效应有较大的影响，较强的边界条件使椭圆板热弹耦合自由振动的频率变低，但振荡幅度增大。
The boundary conditions has strong influence on the coupling effect, the stronger it is, the smaller frequency of free vibration is but the larger amplitude is.
热试结果表明，振荡激波的频率与声频相近。
Hot firings show that the frequency of the oscillating shock is close to the acoustic frequency.
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