carbon arc welding碳: carbon极: I the utmost point; extreme弧焊: arc-welding室外碳极弧灯: open carbon arc lamp双碳极弧光灯: double-carbon arc lamp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:碳极弧焊,即可在微信中查询翻译