Warning: file_put_contents(/www/wwwroot/ppbbu/3402.cn/cache/d88b85ee9084f11c02a7a6c1e87f64f8.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/3402.cn/index.php on line 58 lack of root fusion例句_lack of root fusion英汉例句_lack of root fusion双解例句_咖味滋双解词典
As backing bar for grooved weld on beam flange exists, artificial crack is formed because of lack of fusion at the root of flange weld. 由於梁翼緣的平坡口銲縫墊板結搆存在，梁翼緣銲縫根部融郃不良而形成“人工” 裂紋。