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		黏弹性阻尼作用下轴向运动Timoshenko梁振动特性的研究 1)
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			VIBRATION CHARACTERISTICS OF AXIALLY MOVING TIMOSHENKO BEAM UNDER VISCOELASTIC DAMPING 1)
			 
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		 图1. 参数$c_{1}$和$d_{1}$随着轴向速度的变化情况  | 
	
Fig.1. The parameters $c_{1}$ and $d_{1}$ vary with axial speed  | 
	
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