PDF(3623 KB) 
						
						
					
			
						
							PDF(3623 KB) 
						
						
					
						
							PDF(3623 KB) 
						
						
					水平定向钻穿越扩孔器动态变化及其对扩孔形状的影响
({{custom_author.role_cn}}), {{javascript:window.custom_author_cn_index++;}}The Hole Shape under Horizontal Directional Drilling Crossing
({{custom_author.role_en}}), {{javascript:window.custom_author_en_index++;}}| {{custom_ref.label}} | 
									
										 {{custom_citation.content}} 
										
										
										
										
										
											{{custom_citation.annotation}}
										 
									
									 | 
								
/
| 〈 | 
								 | 
							〉 |