水平定向钻穿越扩孔器动态变化及其对扩孔形状的影响
艾志久, 鲜勇, 夏换, 焦如义, 江勇
The Hole Shape under Horizontal Directional Drilling Crossing
AI Zhijiu, XIAN Yong, XIA Huan, JIAO Ruyi, JIANG Yong
科技导报 . 2014, (16): 54 -57 .  DOI: 10.3981/j.issn.1000-7857.2014.16.009