quenched and tempered steel

• 调质钢

quenched and tempered steel的用法和样例：

例句

1. The application of nonhardened and tempered steel is predicted.
   并预测了非调质钢的应用前景。
2. New microalloy non-quenched-tempered steel was studied.
   研制了一种新型微合金非调质钢。