high speed steel
短语[化] 高速钢; 锋钢
词形变化
high speed steels
复数
别名
high-speed steel
释义与例句
n.
-
1.
A kind of tool steel, invented in the early 20th century, which retains its hardness and temper at high temperatures (at which previous kinds of tool steel would soften), thus allowing cutters made from it to be employed at higher cutting speeds than were previously practical.
可数 不可数 工程