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钻杆接头 zuàngǎn jiētóu
dril. coupling; drill pipe joint; drill stem sub
eng.geol. drill rod coupling; drill sleeve; rod coupling
mech. tool joint
oil drill pipe sub
tech. drill rod joint; rod adapter; spudding shoe
钻杆【工具】接头
mech. tool joints
钻 杆 接头
: 95 phrases in 6 subjects
Drilling43
Engineering geology2
Mechanics2
Metallurgy2
Oil / petroleum24
Technology22

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