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本文较详细地介绍了北仑港发电厂一次汽包上升管接座角焊缝超声波探伤的实践，并总结了通过这次实践获得的一些可贵的经验及有益的提示。
This paper introduces in detail the ultrasonic flaw detection of a primary steam pipe riser weld at Beilun Port Power Station and summarizes some valuable experiences and helpful tips obtained through this practice.