double-v groove weldx: vt. (x-ed, x'd x-ing, x'ing) ...形: form; shape坡: slope口: mouth焊缝: soldering seam; weld bead; w ...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:x形坡口焊缝，即可在微信中查询翻译
