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.
我认为你要维修这个游动滑车并不难，因为它的构造非常简单。
I don't think it will be difficult for you to do the maintenance work for this travelling block, for its construction is quite simple.
钻井用钢丝绳通过天车和游动滑车以滑轮组的形式获得机械上效益。
The drilling line is reeled over the crown block and traveling block to gain mechanical advantage in a "block and tackle" or "pulley" fashion.
这种钢丝绳沿滚筒松开和缠绕引起游动滑车从井眼内下降或上升，无论游动滑车下面悬挂的是什么东西。
This reeling out and in of the drilling line causes the traveling block, and whatever may be hanging underneath it, to be lowered into or raised out of the wellbore.
这种钢丝绳沿滚筒松开和缠绕引起游动滑车从井眼内下降或上升，无论游动滑车下面悬挂的是什么东西。
This reeling out and in of the drilling line causes the traveling block, and whatever may be hanging underneath it, to be lowered into or raised out of the wellbore.
应用推荐