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		接触非线性对声黑洞梁减振效果的影响 1)
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			EFFECT OF CONTACT NONLINEARITY ON ACOUSTIC BLACK HOLE BEAM FOR VIBRATION DAMPING 1)
			 
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		 图11. 能量衰减速率和接触点位置及初始间隙的关系  | 
	
Fig. 11. Energy decay velocity in variation of contact point position and initial gap  | 
	
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