电弧缝焊缝 arc seam weld
平缝平接缝平焊缝 flat seam
平接缝平焊缝 flat seam
并列缝合电阻缝焊装置 parallel seam resistance welding equipment
流缝熔接/缝焊法 seam welding
焊缝、接缝 Seam
并列缝合电阻缝焊装配 parallel seam resistance welding equipment
假如膜外表设置有压索或脊索，那么最佳使裁剪缝与压索或脊索重合，使索不至于打乱焊缝的图画安置。
If the film surface is provided with a press cable or notochord, then make the best cut and sew with pressure cable or notochord coincide, the cable without interrupting the weld picture placement.
采用宽板小成型角生产小口径螺旋缝埋弧焊钢管时，内焊缝产生裂纹是经常遇到的问题。
Inside weld produced cracks are often faced problem by adopting wide coil with small forming Angle to produce small size spiral submerged welded pipe.
主要介绍了俄罗斯学者关于铝锂合金1420焊缝近缝区性能的研究点滴。
Study on the properties of welding line near line section aluminium lithium alloy 1420 by Russia scholar is introduced.
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