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bit burnt
烧钻
在钻进过程中,由于循环系统发生故障,在高速回转时产生高热,钻头与岩心、岩粉烧结在一起的事故。属孔内事故。
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Public Cultural Service Guarantee Law of the People's Republic of China
public data network
public decision-making
public decision-making model
public decision-making system
public diplomacy
public discourse
Public Discussions of the Scholars
public domain book
Public Duties: The Moral Obligations of Government Officials
public economic management
public education
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Public Electronic Reading Room Construction Project
public emergency
public emergency monitoring
public employment service system
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public encryption key
Public English Test System
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