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			Research on Ultrasonic Testing Method for Voiding of Steel Pipe Lining in Hydraulic Tunnel
LI Changzheng;LI Shuyu
Yellow River ›› 2023, Vol. 45 ›› Issue (11) : 151-155.
 PDF(4242 KB)
						
							PDF(4242 KB) 
						
						
					 PDF(4242 KB)
						
							PDF(4242 KB) 
						
						
					Research on Ultrasonic Testing Method for Voiding of Steel Pipe Lining in Hydraulic Tunnel
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