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		三种典型轴向运动结构的振动特性对比 1)
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			COMPARISON OF VIBRATION CHARACTERISTICS OF THREE TYPICAL AXIALLY MOVING STRUCTURES 1)
			 
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		 图3. 板频率$\omega_{n2}$和$\omega_{n3}$的解析与数值结果的对比  | 
	
Fig. 3. Comparisons of the analytical and the numerical results of the frequencies $\omega_{n2}$ and $\omega_{n3}$ of the plate  | 
	
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