welded fissure meaning in English

焊接裂缝,焊合的裂缝
焊接裂纹

In the light of hydrogen manufacturing coverted furnace tube system ( including conversion tube , gas gathering tube and pigtail tube ) occuring weld fissure during manufacture and installation , the reason of fissure is analized . the repair plan and specific repair measures are recommended
针对制氢转化炉管系(包括转化管、集气管、猪尾管)在制造安装过程中出现焊接裂纹的原因进行了分析，并介绍了缺陷的修复方案和具体修复措施。