Warning: file_put_contents(/www/wwwroot/ppbbu/laei.cn/cache/2f7678a8c33419cc259607047d4796ac.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/laei.cn/index.php on line 58 concussion crack是什么意思，concussion crack的翻译，concussion crack音标、读音、用法和例句_按摩法牛津词典
If product suffers heat concussion, it will appear heat stress. If heat stress is enough stronger, the product will produce crack. 制品受到熱沖擊後內部會出現熱應力，儅熱應力過大時制品中會産生裂紋。