Ultrasonic/Sonic Driller and Coring Device

HAN Bo; JIANG Guo-sheng; LU Hong-zhi; FAN Yong

doi:10.3969/j.issn.1672-7428.2010.11.023

2010 No. 11

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HAN Bo, JIANG Guo-sheng, LU Hong-zhi, FAN Yong. Ultrasonic/Sonic Driller and Coring Device[J]. DRILLING ENGINEERING, 2010, (11): 76-79. doi: 10.3969/j.issn.1672-7428.2010.11.023

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HAN Bo, JIANG Guo-sheng, LU Hong-zhi, FAN Yong. Ultrasonic/Sonic Driller and Coring Device[J]. DRILLING ENGINEERING, 2010, (11): 76-79. doi: 10.3969/j.issn.1672-7428.2010.11.023