vertical seam welding竖: vertical; upright; perpendic ...向: direction缝: seam焊: weld; solder横向缝焊: transverse seam welding下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:竖向缝焊，即可在微信中查询翻译
