atomic h weldingatomic hydrogen weldingatomic welding氢原子: hydrogen atom焊: weld; solder氢原子焊接: atomic-hydrogen welding原子焊: atomic welding额外氢原子: extra hydrogen atom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:氢原子焊,即可在微信中查询翻译