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drill collar

  • 钻杆颈:钻井中钻柱中钻头上方的重型管道。

双语例句

  1. We need a short drill collar.
    需要一根短钻铤。
  2. We need a short drill collar to put here.
    这里要接一根短钻铤。
  3. In the event failures of boring tools, the fatigue failure of the drill collar is especially prominent.
    在钻具失效事故中,钻铤的疲劳失效尤为突出。

网络短语

  • hexagonal drill collar
    六方钻铤
  • non-magnetic drill collar
    无磁钻铤
  • square drill collar
    方钻铤
  • spiral drill collar
    螺旋钻铤
  • unbalanced drill collar
    偏重钻铤