常见例句双语例句The hardness number is then read on a dial on the machine. The Rockwell test is very quick, and is suitable FOR mass inspection of parts.然后在硬度计的刻度盘上读出硬度数值。洛氏硬度计测试非常快捷，并且适用于部件的成批检验。 返回 Rockwell hardness number