According to the domestic pipeline construction demand to the pipe, it is proposed to import a longitudinal seam SAW steel pipe mill as early as possible.
根据国内管道建设的需要，建议尽早引进一条直缝埋弧焊管机组。
The results of the SAW seam tracking experiments show that there are good dynamic characteristics and control accuracy in the system.
埋弧焊焊缝跟踪实验表明，该系统具有良好的动态性能和控制精度。
A new kind of the seam tracking system with non-contact ultrasonic sensor in SAW is presented in this paper.
本文提出了一种非接触超声传感埋弧焊焊缝跟踪系统。
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