The above symbols should be put in the proper position of film, and the distance from weld edge should be at least 5mm (see picture3).
上述定位标记和识别标记均应放在胶片的适当位置，并离焊缝边缘至少5mm(图3)。
Which of the symbols below describes the weld shown?
以下哪一个符号正确描述了所示焊缝？
Which of the symbols below describes the weld shown?
以下哪一个符号正确描述了所示焊缝？
应用推荐