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打捞筒 dǎlāotǒng
dril.	overshot; basket; boot socket; fishing socket
oil	catch sleeve; fishing collar; bell socket
打捞筒【岩】 dǎlāotǒng
tech.	basket barrel; catching bell; overshot; tubing catch
卡瓦打捞筒 dǎlāotǒng
dril.	oval socket; overshot

打捞筒: 113 phrases in 4 subjects

Drilling	24
Nautical	1
Oil / petroleum	38
Technology	50