这种卡瓦打捞筒是他设计的。

This kind of overshot is designed by him.

youdao

请把卡瓦打捞筒接上，下钻！

Please make up overshot and run hole!

youdao

他们的做法是使用一个卡瓦打捞筒和震击器去打捞落鱼。

Their practice is to use one over-shot and one jar for fishing.

youdao

卡瓦打捞筒作为钻修井打捞工具，主要用于钻完井作业打捞落物的外捞工具。

Slip socket, the fisher of drilling and repairing well, is mostly used as the outer fisher to fish the drop during the drilling and completion.

youdao

卡瓦打捞筒作为钻修井打捞工具，主要用于钻完井作业打捞落物的外捞工具。

Slip socket, the fisher of drilling and repairing well, is mostly used as the outer fisher to fish the drop during the drilling and completion.

youdao