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气侵
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气侵
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钻井液污染
释
gas cut
气侵
钻井中,特别是探井和气井作业中,钻井液被天然气或空气侵入,造成钻井液比重降低,黏度升高的现象。轻者引起井内压力不稳定,导致停钻除气,重者会造成井喷、井塌事故。
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local-global Torelli problem
local god King Zhang
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Local Government Act(1929)
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Local Government in China Under the Ch’ing
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local governments' and public schools' primary responsibility for children's education of rural migrant workers
local government–run school
local ground field
Local Group
local group
Local group of galaxies
local group of galaxies
local group theory
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local height machine
local helioseismology
local hidden variable
local homeomorphism
local homology
local homology group
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