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不提钻换钻头
释义
不提钻换钻头
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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blue-dragon-wagging-tail method
blue dwarf
Blue Eagle
blue eardrum
blue economy
blue edge
blue-emitting phosphor
blue-empty coloring
blue-empty graph
Blue Exorcist
blue fescue
Bluefields
blue filter
blue flash
blue-free filter
blue galaxy
Blue Gate Crossing
blue giant
bluegrass
blue-green bacteria
blue-green flame
blue-green light communication
blue ground Fushou three turtle back brocade
blue gum chalcid
blue halo star
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