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to phrases
drill-stem
met.
钻柱
drill stem
dril.
钻杆柱
;
钻柱
包括钻头,钻铤,钻杆及附件, 至方钻杆,水龙头
;
钻杆
;
钻柱
oil
带孔棒
;
钻头棒料
;
钎子
drill-stem
:
60 phrases
in 9 subjects
Drilling
12
Earth sciences
4
Engineering geology
3
Geophysics
3
Mechanics
1
Metallurgy
1
Mining
2
Oil / petroleum
17
Technology
17
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