Geological Publishing House, Institute of Exploration Technology, Chinese Academy of Geological SciencesHost
2001 No. 1
Article Contents

NQ-15/20 Mud Ball Machine[J]. DRILLING ENGINEERING, 2001, (1): 31. doi: 10.3969/j.issn.1672-7428.2001.01.017
Citation: NQ-15/20 Mud Ball Machine[J]. DRILLING ENGINEERING, 2001, (1): 31. doi: 10.3969/j.issn.1672-7428.2001.01.017

NQ-15/20 Mud Ball Machine

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    沈阳化工大学材料科学与工程学院 沈阳 110142

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