tubing spear是什么意思

网络释义

1)tubing spear,油管打捞矛2)trip casing spear,套管打捞矛3)fishing for tubing,打捞油管4)sucker rod spear,抽油杆打捞矛5)spear-head,混油头;打捞矛头6)hollow casing spear,空心套管打捞矛