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		单空泡与自由液面相互作用规律研究进展1)
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			RESERCH PROGRESS ON INTERACTION BETWEEN A SINGLE CAVITATION AND FREE SURFACE1)
			 
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		 图7. 球几何下两层流体系统:界面扰动幅值 $\eta $  | 
	
Fig.7. Two-layer fluid system in spherical geometry: Surface perturbation $\eta $  | 
	
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