In addition to the mechanical and hydraulic versions, jars are classified as drilling jars or fishing jars.

除按照机械和液压分类以外，震击器还可以分为钻井用震击器和打捞用震击器。

youdao

All third party equipment, such as downhole motors, MWD, stabilisers, drilling jars, must have detailed fishing diagram available.

第三方的钻具如井下马达、MWD、扶正器、震击器必须有详细的打捞图。

youdao

All third party equipment, such as downhole motors, MWD, stabilisers, drilling jars, must have detailed fishing diagram available.

第三方的钻具如井下马达、MWD、扶正器、震击器必须有详细的打捞图。

youdao