汪志明. The Determination1 of Flow in Chip-removing Duct,Flow in Negtive Pressure Duct and Separating Flow Ratio of DF Deephole Drillng System[J]. 1987, No.20(4): 6-13.
汪志明. The Determination1 of Flow in Chip-removing Duct,Flow in Negtive Pressure Duct and Separating Flow Ratio of DF Deephole Drillng System[J]. 1987, No.20(4): 6-13.DOI: