对现场测量管道声衬声阻抗的双传声器法进行了研究。

The two-microphone method is investigated for the objective of in situ measuring the impedance of an acoustic liner in a duct.

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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.

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输气管道内腐蚀控制技术包括采用失重挂片法测量管道内腐蚀速度和加注缓蚀剂等。

Internal corrosion control technology in pipeline includes gravity drop method to measure corrosion speed and pour into anti-corrosion doze.

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