Manufacture and Improvement on Serf-propelled Direct and Reverse Circulation Construction Drill
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吴艳 贾永波 卢玉忠.自走式正反循环工程钻机的研制及改进[J].钻探工程,2006,33(9):49-50.WU Yan, JIA Yong-bo, LU Yu-zhong. Manufacture and Improvement on Serf-propelled Direct and Reverse Circulation Construction Drill[J]. Drilling Engineering, 2006,33(9):49-50.
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- 收稿日期:2006-08-18
- 最后修改日期:2006-08-18
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