试题与答案

高硬度材料的精加工及半精加工刀具适宜用()制造。A.陶瓷材料 B.热压氮化硅 C.立

题型:单项选择题

题目:

高硬度材料的精加工及半精加工刀具适宜用()制造。

A.陶瓷材料

B.热压氮化硅

C.立方氮化硼

D.金刚石

答案:

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参考答案:电化学击穿

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