inert-gas arc welding钝: blunt; dull气: gas电弧: arc; electric arc; voltaic a ...熔: melt; fuse; smelt接: come into contact with; come ...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:钝气电弧熔接，即可在微信中查询翻译
