straight welding line的意思|示意
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直焊线
straight welding line的网络常见释义
直焊缝 ...别方法与电路 关键词：焊缝识别；直焊缝；超声无损检测 [gap=518]Key words：welding line identifying;straight welding line;ultrasonic non-destructive testing ...
straight welding line相关短语
1、 straight line spot welding 直线点焊