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烧钻
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烧钻
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孔内事故
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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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state of coagulation
State of emergency
State of Emergency in India
state of energy
state of energy term
state of equilibrium
state of excitation
state of ionization
state of matter
state of motion
state of neuron
state of order
state of polarization
state of qigong
state of unitary system
state of war
state-operated industry
state operator
state organism theory
state-owned asset management system
state-owned assets administration law
state-owned assets income
state-owned assets investment company
state-owned assets operating companies
state-owned bookstore
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