folded lap seam 屈接缝
lap seam [皮革] 搭接缝
seam-lap 咬扣
lap seam welding 搭接缝焊 ; 搭接焊 ; 搭接滚焊
lap seam welder 搭焊机
lap-seam cathode 叠缝阴极
lap seam weld 搭接焊缝 ; 搭接缝焊
Open-lap seam 开口缝
soldered lap seam 软焊搭缝
Joining together must clean up, to ensure flat-fell seam lap closely.
拼接处必需清理干净，以确保拼缝搭接紧密。
According to the different product structure, butt fusion welding process and lap seam welding process are used to respectively weld left and right half shell of upper body.
上体左、右半壳直焊缝视产品结构不同，分别采用对接熔化焊和搭接缝焊工艺。
Welding and allied processes. resistance spot, projection and seam welded lap joints. classification of defects with explanatory comments.
焊接和有关技术。电阻点焊凸焊或缝焊搭接接头。带解释的缺陷分类。
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