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work string
work string
abbr.
dril.
活动钻具
|
casing annulus
casing annulus
abbr.
dril.
套管 环空
to phrases
work string
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dril.
活动钻具
oil
工作管柱
;
施工管柱
;
拖拉管
;
作业管柱
work string
:
5 phrases
in 3 subjects
Drilling
1
Oil / petroleum
3
Technology
1
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