half-hard

英 ['hɑːfh'ɑːd] 美 ['hɑːfh'ɑːd]

• n. 中硬金属

例句

用作名词 (n.)

1. Likewise, segments for cutting soft aggregates should have hard metal bonds, so that the diamond particles are not lost before their cutting life is used up.
   各环节要有硬金属切削软总量债券使钻石切割前颗粒不失去生命是用光。