有关焊接方面的英语? “small tack welds(maximum 13 mm) shall be used. all tack welds which have to be incorporated in the final weld shall be ground,except tack welds made with GTAW.bigger tack welds shall be used(maximum 40 mm) for pipe size over 24,provided these tack welds are removed” 一小段关于点焊的内容,我怕自己水平不好翻译的不准确,所以在这里找高手帮个忙。查看更多2个回答 . 1人已关注