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to phrases
rat hole
dril.
大
鼠洞
;
井底口袋
;
方钻杆鼠洞
;
大鼠洞
;
井底小直径井眼
oil
井底部小直径井眼
;
井底小口径井眼
(特殊完井)
;
鼠洞
;
缩小井径再钻进
tech.
放备用钻杆的浅孔
;
料仓内物料形成的管状漏斗
;
大钻孔导孔
;
储放钻杆的浅孔
rat hole
:
16 phrases
in 3 subjects
Drilling
5
Oil / petroleum
5
Technology
6
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