英语翻译The materials from which cutting tools are made are all
英语翻译
The materials from which cutting tools are made are all characteristically hard and strong.There is a wide range
of tool materials available for machining operations,and the general classification and use of these materials are of
interest here.
我决定翻译成这样:切削刀具的材料都具有特有的硬度和强度。搞清刀具材料的加工范围,刀具材料的分类,和这些材料的使用,在这里都是很有用的。