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