drill string

常见例句

The riser’s inner hollow core (a pipe within a pipe) is reserved for the drill string.
立管内部核心是空心的（管中管），留给钻柱使用。
The crew attaches new lengths of pipe one by one from the top until the “drill string” is long enough to hit the seafloor.
船员们从这根钢管的顶部，一根一根地装上更多管道，直到这根“钻柱”足够长，能碰到海底。
The drill string of ERW is taken as research object, the dynamic problem is brought forward during making hole, and the mechanics model about each dynamic action is established.
以大位移井钻柱的部分或整体为研究对象，提出了钻井各种动态问题，建立了钻柱的各种动态行为的力学模型。

The new pipe will be placed right next to the small section of abandoned pipe where the drill string got stuck.
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Imagine manipulating a drill string that long in such a small hole.
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As the drill progresses through the rock and sand below the seabed, the pressure of the mud in the drill string must be kept within a limited range.
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