surface crock

• 表面裂纹

surface crock的用法和样例：

例句

1. No stress measurements or crack surface samples were available for examination, only the surface crack configuration.
   没有应力测量或裂纹表面取样可用于检验，只能依据表面裂纹图形。
2. The decarbonizing layer and crack on the surface of peeled bright bars are removed effectively.
   剥皮银亮钢被有效地除去了表面脱碳层和表面裂纹。