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casing
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casing
Encyclopedia
理学
孔内钻具
释
casing
套管
为保障泥浆正常循环,防止井眼坍塌,以保证钻进过程正常进行,插入钻孔或井内用于支撑孔壁的钢管。
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following
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following compactification
following edge
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follow spot light
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follow-up control
follow-up grinding machine
follow up in cohort study
follow up observation
follow-up posting
follow-up regulatory systems
follow-up survey for the regional geochemical anomaly
Fomalbaut
Fomalhaut
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