Two-way Locking Mechanism Design for Telescopic Downhole Tractors
LIU Qingyou, ZHENG Wei, YANG Yaqiang, ZHANG Shuyang, ZHU Haiyan
西南石油大学学报(自然科学版) . 2018, (1): 1 -10 .  DOI: 10.11885/j.issn.1674-5086.2016.12.24.01