indentation method

• 刻痕法,压痕法

indentation method的用法和样例：

例句

1. Indentation methods of hardness testing comprise two principal groups.
   压痕法测定硬度包括两大类。
2. Crack nucleation and propagation in wear-resistant bainite ductile cast iron were investigated by press trace method and SEM.
   采用压痕法及扫描电镜观察，研究了抗磨贝氏体球铁中裂纹的形核与扩展。