scratch hardness test

例句：

1. 1. The company conducted a scratch hardness test on the new material to ensure its durability.
   该公司对新材料进行了划痕硬度测试，以确保其耐用性。
2. 2. During the manufacturing process, the engineer performed a scratch hardness test to evaluate the surface quality of the parts.
   在制造过程中，工程师进行了划痕硬度测试，以评估零件的表面质量。
3. 3. The scratch hardness test results were used to determine the optimal processing parameters for the material.
   划痕硬度测试结果被用来确定材料的最佳加工参数。