hardness number的用法和样例：
例句
- And its microhardness was measured by a microvickers hardness tester.
用显微硬度仪测试铸件表面硬度值。 - It can be used to test Vickers or Knoop hardness, through the diagonal measurement of the value of integration into the calculator,which calculated hardness.
它可用于测试维氏或努氏硬度，通过把测量的对角线值输入到本机一体化计算器，从而计算出硬度值。
