Lay down this bent drill pipe.
甩掉这根弯钻杆。
We must have this drill pipe shortened.
我们必须把这根钻杆截短。
This is the dope for drill pipe thread.
这是钻杆丝扣油，不能用在钻铤丝扣上。
What is the drill pipe string weight in air?
钻杆在空气中的重量是多少？
Record all the drill pipe and casing pressure;
记录钻杆压和套压；
Longitudinal crack of drill pipe box joint is brittle fracture at low stress.
钻杆接头的各种纵向开裂属于低应力脆性断裂。
It is significant for adjusting drill pipe sequence to improve average life of drill string.
该研究结果对于现场提高钻柱的平均使用寿命具有重要的工程理论指导意义。
Drill pipe threads are not cleaned in that way.
钻杆丝扣不是那样清洗的。
Drill pipe threads are not cleaned in that way.
钻杆丝扣不是那样清洗的。
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