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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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furunculosis of salmonids
Fu Ruojin
Furuya Seiichi
Fu Ruzhou
fur with frost
Furyoki
fusain
fusain layer
Fusakichi Ōmori
Fu Sanqian
fusarium
Fusarium blight disease
Fusarium graminearum
Fusarium oxysporum
fusariumsis
fusariumsis of shrimp
Fusarium tricinctum
Fusarium wilt of banana
FUSC
FUSE
fuse
fused
fused calcium magnesium phasphate
fused calcium-silicon potassium phosphate
fused cast block
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