石油英语|能源动力行业英语第1307页 ... threadedconnector螺纹接头 threadeddrillpipe螺纹钻杆 threadedfile连接文件 ...
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滚丝轮螺纹和钻杆螺纹的螺旋角有误差。
Secondly there is error between the thread roll angles of thread rolling die and drill rod.
分析对比绳索取心钻杆螺纹的普通车削、数控车削加工的方法。
Analyze and compare the general lathe work and the CNC lathe work for the cordage core rod's thread.
应用钻杆失效评估技术研究表明，横向材料冲击功大于80J将避免钻杆内螺纹接头纵向脆性开裂失效。
The drill pipe failure assessment demonstrates the longitudinal brittle fracture will be avoided when the transverse impact power of the material is over 80J.
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