root gap是什么意思及反义词

root gap 英[ru:t ɡ?p] 美[rut ɡ?p]

[词典] 根部间隙;

[例句]Vision-based detection of root gap and deviation between torch and gap centerline in GMAW

GMAW根部间隙及焊枪对中信息的视觉检测