经过近似处理，推导出自激振荡的力学模型。
A mathematical model is therefore developed by approximation for such a self-exciting shock.
放大器自激振荡的频率就取决于流体的速度。
Amplifier self-oscillates at a frequency depending on the velocity of the fluid.
文中简要分析了耦合腔行波管产生自激振荡的原因。
The reason of spurious oscillations in CCTWTs has briefly analysised in this paper.
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