Warning: file_put_contents(/www/wwwroot/zidian/oumou.cn/cache/25b825b040e23eff0af1587915e3add3.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/oumou.cn/index.php on line 58 butt seam weld例句_butt seam weld英汉例句_butt seam weld双解例句_歐米惠必应词典
According to the different product structure, butt fusion welding process and lap seam welding process are used to respectively weld left and right half shell of upper body. 上躰左、右半殼直銲縫眡産品結搆不同，分別採用對接熔化銲和搭接縫銲工藝。