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刮管
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刮管
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scraper
刮管
利用套管刮削工具将套管内壁上的水泥及炮眼毛刺清除掉从而保证井下工具正常工作及封隔器成功坐封的投产措施。又称套管刮削。
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information retrieval evaluation
information retrieval feedback
Information Retrieval Journal
Information Retrieval Language
information retrieval language
information retrieval model
information retrieval query operation
information retrieval service
information retrieval strategy
information retrieval system
Information Retrieval Systems: Characteristics, Testing and Evaluation
information retrieval tool
information review
information revolution
information rich
information ring model
information risk
information room fire
information rule
information safety management
Information Schools,iSchools
Information School, University of Washington
Information Science
information science
information science education
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