coiled pumping rod 连续抽油杆
continuous pumping rod 连续抽油杆
double hollow pumping rod 双空心杆
hollow pumping rod production 空心杆采油
old pumping rod 旧抽油杆
new pumping rod 新型抽油杆
oil pumping rod 抽油杆柱
pumping rod string 抽油杆柱
Eddy current, magnetic leak, magnetic particle and ultrasonic test are the main methods used for pumping rod test.
目前，对抽油杆的自动探伤主要有涡流、漏磁、磁粉及超声方法，各有其优缺点及适用范围。
The common faults during oil pumping rod inspection are analyzed, the reasons that cause them and the solving methods are discussed.
对抽油杆检测中发现的常见不合格项进行了分析，探讨了形成原因和解决方法。
A pumping rod housing lock joint of a screw pump is primarily used to resolve the problem that the current screw pumping rod joint is easy to release.
一种螺杆泵抽油杆防脱扣接头主要解决现有螺杆泵抽油杆接头易脱扣问题。
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