PDF(471 KB) 
						
						
					
			
						
							PDF(471 KB) 
						
						
					
						
							PDF(471 KB) 
						
						
					隧道洞口位于人群聚居区出洞施工方案探讨
Discussion on the Construction Scheme of Tunnel Entrance in Crowded Population Area
| {{custom_ref.label}} | 
									
										 {{custom_citation.content}} 
										
										
										
										
										
											{{custom_citation.annotation}}
										 
									
									 | 
								
/
| 〈 | 
								 | 
							〉 |