PDF(1087 KB) 
						
						
					
			
						
							PDF(1087 KB) 
						
						
					
						
							PDF(1087 KB) 
						
						
					隧道掘进钻爆法施工技术的进步和发展
Progresses and Developments of Tunnel Construction Technology with Bored Blast Method
| {{custom_ref.label}} | 
									
										 {{custom_citation.content}} 
										
										
										
										
										
											{{custom_citation.annotation}}
										 
									
									 | 
								
/
| 〈 | 
								 | 
							〉 |