deteriorative layer

• 变质层

deteriorative layer的用法和样例：

例句

1. Testing and cortrolling methods of grinding badness layer of bearings working surface.
   轴承工作表面的磨削变质层的检验及控制方法。
2. By means of regression design, the rela-tional formula between the depth of the thermal damage layer and parameters of technology was found.
   采用回归设计方法，通过试验找出齿面变质层深度与各工艺参数间的关系式。