英语词汇“sinker bar”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	sinker bar
释义	sinker bar noun : a short bar or stem placed above the drill jars to give force to the upward jar in well drilling with cable tools
随便看	gurjun gurjun balsam gurjuns gurk Gurkha gurkhas gurl gurly Gurma gurmas Gurmukhi gurnard gurnards gurned Gurnee gurnets gurney Gurneyite gurneys gurning gurns Guro guros Ionia ioniae

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sinker bar