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replacing bit without lifting drills
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replacing bit without lifting drills
Encyclopedia
理学
钻进工艺
释
replacing bit without lifting drills
不提钻换钻头
绳索取心钻进过程中,在不起下钻的情况下,将孔底旧钻头单独或随内管总成一起打捞至地面,并将新钻头单独或随内管总成一起下入孔底进行钻进的作业。
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ABJ反常
A. B. Kempe
A. B. Kempe (1849—1922)
abkhazite
ABL
a black-lacquer case with a mother-of-pearl inlay picture of Children at Play
ablation
ablation age
ablation area of glacier
ablation cooling
ablation property of ceramics
ablation rate
ablation resistant composites
ablation stabilization
ablative material
ablative polymer
ablative thermal protection coating
ablator
ablaze
Ablesimov Aleksander Onisimovich
A Blizzard-favored Marriage
A. Bloch
A. Bloch (1893—1948)
ABM
abmho
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