When the exciting force was constant the average level of sound radiation produced by modal vibration has a linear relationship with the level of mode shapes.

得出，当激振点不变时，激振力级的变化与振动模态辐射的平均声压级成线性关系；

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When the exciting force was constant the average level of sound radiation produced by modal vibration has a linear relationship with the level of mode shapes.

得出，当激振点不变时，激振力级的变化与振动模态辐射的平均声压级成线性关系；

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