Warning: file_put_contents(/www/wwwroot/ppbbu/4cd.cn/cache/cfabd5d242f1c79dfc116bdef8b253e3.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 lack of root fusion是什么意思，lack of root fusion的翻译，lack of root fusion音标、读音、用法和例句_沉淀汉英词典
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。