ball hardness testing machine

• 布氏硬度试验机,布氏硬度计

ball hardness testing machine的用法和样例：

例句

1. And the measured uncertainty in Vickers hardness testing was evaluated according to procedure without bias method and procedure with bias method.
   利用无偏差估计方法和考虑硬度计偏差的方法对维氏硬度试验中的测量不确定度进行了评定。
2. The ultrasonic hardness tester is an versatile nondestructive tester.
   超声硬度计是一种普适的无损测试仪器。