Rockwell hardness number的用法和樣例：
例句
- And its microhardness was measured by a microvickers hardness tester.
用顯微硬度儀測試鑄件表面硬度值。 - 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.
它可用於測試維氏或努氏硬度，通過把測量的對角線值輸入到本機一體化計算器，從而計算出硬度值。
