Do we need to slip the drilling line very often?
我们需要经常滑大绳吗？
While we were slipping drilling line, they were measuring drill pipes.
当我们滑大绳的时候，他们在仗量钻具。
Feed the new drilling line (fast line) through the side of the drawworks drum.
把快绳头穿过绞车辊筒的一边。
To replace the drilling line wrapped around the crown block and traveling block.
为更换缠绕在天车和游动滑车周围的钻井钢丝绳用。
To replace the drilling line wrapped around the crown block and traveling block.
为更换缠绕在天车和游动滑车周围的钻井钢丝绳用。
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