Global Geology     2008 11 (1):  42-46    ISSN: 1673-9736:  CN: 22-1371/P

Repacking practice for G-3 engineering driller power unit with drive shaft of dual channel reverse circulation
Lihong ZHU, Kun YIN, Qingyan WANG, Yong HUANG
Received null  Revised null  Online 2008-03-25
Reference  null

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