diameter at butt end 根端直径
diameter at butt-end 干基直径
butt end diameter [木] 大径
diameter at butt 干基直径
large-diameter butt welded pipe 大直径直缝焊管
This paper introduces the ultrasonic inspection technics in the butt welded-joints of T91 small diameter tubes, and discusses its technical feasibility.
介绍t 91钢小径管焊接接头的超声波探伤工艺，并就工艺的可行性进行探讨。
The status of the radiographic technology for the butt-welded joints in small diameter tubes are re-viewed briefly. The key points are discussed for the development of radiographic technology.
简要评述小直径管对接焊缝射线照相的特点、方法以及现行技术规定。
应用推荐