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casing patch
 casing patch
dril. 补套管
 | tool
 tool
dril. 工 具
hydroel.st. 量具
hydroel.st. од. 工具
mech. 钻杆
met. 刃具; 刀具; 方法; 手段
met. од. 器械

to phrases

casing patch

dril. 补套管
oil 套管补贴; 套管修补
casing patch
: 4 phrases in 2 subjects
Drilling1
Oil / petroleum3

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