研究过程中设计的超声波轮式探头，发出超声波信号测量管道壁厚。
A roller ultrasonic probe was designed in the subject, and it sends ultrasonic wave to detect the pipe wall's thickness.
提出了一种基于电磁式漏磁检测原理的传感器，用于煤气管道壁厚检测。
A sensor which is applicable to test thickness of gas pipe wall based on electromagnetic flux leakage method is proposed.
通过管道壁厚、管道应力、安全系数的校核，表明该批钢材仍符合要求，但要加强安全监督。
After checking the pipe wall thickness, pipe stress and safety factors this batch of steel material has still complied with the requirements, while safety Surveillance should be enhanced.
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