Drill string resonance is the major cause of drill tool failure.
钻柱共振是引起深井钻具失效的主要原因。
The failure of collar connection thread is one of the prime drill tool failures.
石油钻铤螺纹联接失效是钻具失效的主要类型。
The air screw drill tool was power equipment which was designed for air drilling.
空气螺杆钻具是专为空气钻井而设计的动力装置。
A novel drill tool threaded connection stress relief groove is proposed in the paper.
减少连接螺纹弯曲应力可以延长钻具连接螺纹的疲劳寿命。
Orthopedic drill tool can be served according to the specific drawing size or sample.
骨科类钻头，工具可以按客户提供的尺寸图、或者样品生产。
提起钻柱测试工具。
Slack off drill Pope and release running the tool.
放松钻杆并卸开下入工具。
Gun drill is a kind of extensively used hole-machining tool.
枪钻是一种广泛应用的孔加工刀具。
Twist drill is the tool often used in machine process.
钻是机械加工中使用量较大的一种加工刀具。
Twist drill is the tool often used in machine process.
钻是机械加工中使用量较大的一种加工刀具。
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