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			Research on the Choice ofDeep Cutting and Short Tunnel in theMountain Area for Protection of Ecological Environment
ZHAO W en-yan
Journal of Railway Engineering Society ›› 2009, Vol. 26 ›› Issue (11) : 1-4.
						
							PDF(897 KB) 
						
						
					
						
							PDF(897 KB) 
						
						
					Research on the Choice ofDeep Cutting and Short Tunnel in theMountain Area for Protection of Ecological Environment
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