Finish the Guided Summary (P. 80) in your Exercise Book 1.
完成80页上的总结，写在练习本1上。
All that involved in the paper are analysis and summary of some operation situations of the said pipeline detection with the ultrasonic guided wave process.
对超声导波检测技术在天然气集输站场的管道检测中遇到的一些情况进行了分析总结。
All that involved in the paper are analysis and summary of some operation situations of the said pipeline detection with the ultrasonic guided wave process.
对超声导波检测技术在天然气集输站场的管道检测中遇到的一些情况进行了分析总结。
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