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。

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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。

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