Eddy current, magnetic leak, magnetic particle and ultrasonic test are the main methods used for pumping rodtest.
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。
2
As there is no unified standards of failure for the soil float resisting anchor rodtest, the parameters of pulling-resistance are discrete, which often led to incorrect design.
因抗浮锚杆试验没有统一的破坏标准，测出的抗拔参数差异大，不能正确指导设计。
3
The technology of power adjusting is one of the key technologies of fuel rod ramp test.