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		板中热弹波传播: 一种改进的勒让德多项式方法 1)
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			THERMOELASTIC WAVE PROPAGATION IN PLATES: AN IMPROVED LEGENDRE POLYNOMIAL APPROACH 1)
			 
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		 图4. 不同分数阶的弹波虚部波数对比  | 
	
Fig.4. Comparison of imaginary part wave number of elastic wave with different fractional order  | 
	
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