Knoop microhardness test

例句：

1. 1. The engineer used the Knoop microhardness test to measure thematerial's hardness.
   工程师使用克努普微硬度测试来测量材料的硬度。
2. 2. In this study, we conducted aKnoop microhardness test onthe samples to determine their mechanical properties.
   在这项研究中，我们对样本进行了克努普微硬度测试，以确定它们的机械性质。
3. 3. The results of the Knoop microhardness test were consistent withthose obtained from other tests.
   克努普微硬度测试的结果与其他测试结果一致。