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循环阀
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循环阀
Encyclopedia
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测试作业设备
释
circulating sub
循环阀
在测试结束后,可为环空和管柱之间建立循环通道,用于替出管柱中的地层流体和循环压井作业的阀门。
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presowing treatment of seed
presowing treatment of tree seed
presplitting
presplitting blasting
presplitting blasting of open pit
Presqu'île crater
PRESS
press
press allowance
Press and America: An Interpretive History of the Mass Media
Press and Publication Administration
Press and Publication Confidentiality System
Press and Publication Digital Resource Identifier, PPRI
Press Association,PA
pressboard
press censorship
press circles
Press Complaints Commission
press conference
press council
Press Council (British)
pressductor
pressed
pressed voice
pressel
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